From c879a7ec035bede9412e6e2fa92ac6dd2987b937 Mon Sep 17 00:00:00 2001
From: Douglas DUTEIL <douglasduteil@gmail.com>
Date: Sun, 17 Nov 2024 12:26:55 +0100
Subject: [PATCH 1/3] refactor(www): use new trpc root provider

---
 apps/www/app/(auth)/signup/student/page.tsx   |   5 +-
 .../(public)/following/_client/List.tsx       |   2 +-
 .../(main)/exchanges/@categories/Filter.tsx   |   5 +-
 apps/www/app/(main)/exchanges/layout.tsx      |  17 +-
 apps/www/app/(main)/exchanges/page.tsx        |   6 +-
 apps/www/app/(main)/navbar.tsx                |   4 +-
 .../navbar/notification_indicator.client.tsx  |  18 +--
 .../components/shell/AuthSessionProvider.tsx  |   3 +
 apps/www/components/shell/RootProviders.tsx   |   4 +-
 .../exchanges/filter}/Exchanges_Filter.tsx    |   0
 apps/www/widgets/exchanges/filter/index.ts    |   3 +
 .../exchanges/list}/List.tsx                  |   8 +-
 .../exchanges/list}/SearchForm.tsx            |   0
 apps/www/widgets/exchanges/list/index.ts      |   4 +
 .../infra/database/seeding/inbox/greetings.ts |  35 +++++
 packages/@1/infra/database/seeding/index.ts   |   1 +
 packages/@1/infra/database/testing/index.ts   |  16 ++
 packages/@1/modules/exchange/api/src/index.ts |  27 ++--
 .../exchange/api/src/public/by_id.e2e.test.ts |  35 +----
 .../modules/exchange/api/src/public/by_id.ts  |  98 ++++++------
 .../exchange/api/src/public/find.e2e.test.ts  |  40 ++---
 .../modules/exchange/api/src/public/find.ts   | 148 +++++++++---------
 .../notification/api/src/count_unread.ts      |  76 ---------
 .../count_unread.e2e.test.ts.snap             |   7 +
 .../src/count_unread/count_unread.e2e.test.ts | 131 ++++++++++++++++
 .../api/src/count_unread/count_unread.ts      |  78 +++++++++
 .../api/src/count_unread/index.ts             |   3 +
 .../@1/modules/notification/api/src/find.ts   |  93 -----------
 .../find/__snapshots__/find.e2e.test.ts.snap  |  29 ++++
 .../api/src/find/find.e2e.test.ts             |  57 +++++++
 .../modules/notification/api/src/find/find.ts |  81 ++++++++++
 .../notification/api/src/find/index.ts        |   3 +
 .../@1/modules/notification/api/src/index.ts  |  14 +-
 packages/@1/modules/trpc/src/testing/index.ts |  13 ++
 serkels.code-workspace                        |  11 ++
 35 files changed, 677 insertions(+), 398 deletions(-)
 rename apps/www/{app/(main)/exchanges/_client => widgets/exchanges/filter}/Exchanges_Filter.tsx (100%)
 create mode 100644 apps/www/widgets/exchanges/filter/index.ts
 rename apps/www/{app/(main)/exchanges/_client => widgets/exchanges/list}/List.tsx (93%)
 rename apps/www/{app/(main)/exchanges/_client => widgets/exchanges/list}/SearchForm.tsx (100%)
 create mode 100644 apps/www/widgets/exchanges/list/index.ts
 create mode 100644 packages/@1/infra/database/seeding/inbox/greetings.ts
 delete mode 100644 packages/@1/modules/notification/api/src/count_unread.ts
 create mode 100644 packages/@1/modules/notification/api/src/count_unread/__snapshots__/count_unread.e2e.test.ts.snap
 create mode 100644 packages/@1/modules/notification/api/src/count_unread/count_unread.e2e.test.ts
 create mode 100644 packages/@1/modules/notification/api/src/count_unread/count_unread.ts
 create mode 100644 packages/@1/modules/notification/api/src/count_unread/index.ts
 delete mode 100644 packages/@1/modules/notification/api/src/find.ts
 create mode 100644 packages/@1/modules/notification/api/src/find/__snapshots__/find.e2e.test.ts.snap
 create mode 100644 packages/@1/modules/notification/api/src/find/find.e2e.test.ts
 create mode 100644 packages/@1/modules/notification/api/src/find/find.ts
 create mode 100644 packages/@1/modules/notification/api/src/find/index.ts

diff --git a/apps/www/app/(auth)/signup/student/page.tsx b/apps/www/app/(auth)/signup/student/page.tsx
index 5bbafed62..dd43dbaa5 100644
--- a/apps/www/app/(auth)/signup/student/page.tsx
+++ b/apps/www/app/(auth)/signup/student/page.tsx
@@ -1,6 +1,5 @@
 //
 
-import { TrpcRootProvider } from ":trpc/root";
 import { TRPC_SSR } from ":trpc/server";
 import Form from ":widgets/auth/SignUpForm";
 import { auth } from "@1.modules/auth.next";
@@ -38,9 +37,7 @@ async function Page() {
 
   return (
     <main className={base()}>
-      <TrpcRootProvider>
-        <Form categories={await TRPC_SSR.category.exchange.fetch()} />
-      </TrpcRootProvider>
+      <Form categories={await TRPC_SSR.category.exchange.fetch()} />
     </main>
   );
 }
diff --git a/apps/www/app/(main)/door/[code]/(public)/following/_client/List.tsx b/apps/www/app/(main)/door/[code]/(public)/following/_client/List.tsx
index 087df98ce..ef49a6dec 100644
--- a/apps/www/app/(main)/door/[code]/(public)/following/_client/List.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/following/_client/List.tsx
@@ -2,6 +2,7 @@
 
 import { ProfileAvatarMedia } from ":components/avatar";
 import type { inferInfiniteQueryObserverSuccessResult } from ":components/inferQueryResult";
+import { Loading_Placeholder } from ":components/placeholder/Loading_Placeholder";
 import { TRPC_React } from ":trpc/client";
 import type { AvatarProfile } from "@1.modules/profile.domain";
 import { EmptyList, LoadMoreButton } from "@1.ui/react/async";
@@ -9,7 +10,6 @@ import { button_item } from "@1.ui/react/button/atom";
 import { Spinner } from "@1.ui/react/spinner";
 import Link from "next/link";
 import { P, match } from "ts-pattern";
-import Loading_Placeholder from "../loading";
 
 //
 
diff --git a/apps/www/app/(main)/exchanges/@categories/Filter.tsx b/apps/www/app/(main)/exchanges/@categories/Filter.tsx
index aaf1f4207..c8a82216f 100644
--- a/apps/www/app/(main)/exchanges/@categories/Filter.tsx
+++ b/apps/www/app/(main)/exchanges/@categories/Filter.tsx
@@ -2,7 +2,7 @@
 
 import { useSyncSearchQuery } from ":components/hooks/useSyncSearchQuery";
 import { useAutoClose } from ":components/shell/AsideFilter.client";
-import { TRPC_React } from ":trpc/client";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import { CATEGORY_ALL } from "@1.modules/category.domain";
 import { FilterRadioList } from "@1.ui/react/form/FilterRadioList";
 import { usePathname, useRouter } from "next/navigation";
@@ -13,7 +13,8 @@ import { useMemo } from "react";
 export function Filter() {
   const { query, setQuery } = useSyncSearchQuery("category");
   const { query: filter } = useSyncSearchQuery("f");
-  const { data: categories_, status } = TRPC_React.category.exchange.useQuery();
+  const { data: categories_, status } =
+    trpc_client.category.exchange.useQuery();
   const { close } = useAutoClose();
   const pathname = usePathname() ?? "";
   const router = useRouter();
diff --git a/apps/www/app/(main)/exchanges/layout.tsx b/apps/www/app/(main)/exchanges/layout.tsx
index d6f0fb8c4..20f1affc5 100644
--- a/apps/www/app/(main)/exchanges/layout.tsx
+++ b/apps/www/app/(main)/exchanges/layout.tsx
@@ -1,19 +1,10 @@
 ///
 
 import { AsideFilter } from ":components/shell/AsideFilter";
+import { Exchanges_Filter } from ":widgets/exchanges/filter";
+import { SearchForm } from ":widgets/exchanges/list";
 import { Grid } from "@1.ui/react/grid";
-import InputSearch from "@1.ui/react/input/InputSearch";
-import dynamic from "next/dynamic";
 import type { PropsWithChildren, ReactNode } from "react";
-import { Exchanges_Filter } from "./_client/Exchanges_Filter";
-
-//
-
-const SearchForm = dynamic(() => import("./_client/SearchForm"), {
-  loading() {
-    return <InputSearch />;
-  },
-});
 
 //
 
@@ -37,9 +28,9 @@ export default async function Layout({
         {categories}
       </AsideFilter>
       <div className="col-span-full md:col-span-6 md:my-10">{children}</div>
-      <aside className="mt-10 hidden xl:col-span-3 xl:block xl:px-10">
+      {/* <aside className="mt-10 hidden xl:col-span-3 xl:block xl:px-10">
         {see_also}
-      </aside>
+      </aside> */}
     </Grid>
   );
 }
diff --git a/apps/www/app/(main)/exchanges/page.tsx b/apps/www/app/(main)/exchanges/page.tsx
index 8ff7d0d6a..25ec083db 100644
--- a/apps/www/app/(main)/exchanges/page.tsx
+++ b/apps/www/app/(main)/exchanges/page.tsx
@@ -1,8 +1,9 @@
 //
 
 import { TRPC_Hydrate } from ":trpc/server";
+import { List } from ":widgets/exchanges/list";
 import { trpc_server } from "@1.infra/trpc/react-query/server";
-import { getServerSession } from "@1.modules/auth.next";
+import { auth } from "@1.modules/auth.next";
 import {
   Exchange_Filter,
   type ExchangeSearchParams,
@@ -12,7 +13,6 @@ import { PlusBox } from "@1.ui/react/icons";
 import { link } from "@1.ui/react/link/atom";
 import type { Metadata, ResolvingMetadata } from "next";
 import Link from "next/link";
-import List from "./_client/List";
 
 //
 
@@ -61,7 +61,7 @@ export default async function Page({
 }
 
 async function NewExchangeSection() {
-  const session = await getServerSession();
+  const session = await auth();
 
   if (!session) return null;
   if (session.profile.role !== "STUDENT") return null;
diff --git a/apps/www/app/(main)/navbar.tsx b/apps/www/app/(main)/navbar.tsx
index a17982c30..e0fd2f7da 100644
--- a/apps/www/app/(main)/navbar.tsx
+++ b/apps/www/app/(main)/navbar.tsx
@@ -7,7 +7,7 @@ import {
 } from ":components/navbar/notification_indicator.client";
 import { MobileNavBar } from ":components/shell/MobileNavBar";
 import { TRPC_SSR } from ":trpc/server";
-import { getServerSession } from "@1.modules/auth.next";
+import { auth } from "@1.modules/auth.next";
 import { PROFILE_ROLES, type AuthProfile } from "@1.modules/profile.domain";
 import { Avatar } from "@1.modules/profile.ui";
 import { Grid } from "@1.ui/react/grid";
@@ -40,7 +40,7 @@ export default function UserBar() {
 }
 
 async function UserNavGroup({ className }: ComponentPropsWithoutRef<"nav">) {
-  const session = await getServerSession();
+  const session = await auth();
   const { base, icon } = user_nav_group_variants({
     size: {
       initial: "xsmall",
diff --git a/apps/www/components/navbar/notification_indicator.client.tsx b/apps/www/components/navbar/notification_indicator.client.tsx
index 6fa2f0722..654fab426 100644
--- a/apps/www/components/navbar/notification_indicator.client.tsx
+++ b/apps/www/components/navbar/notification_indicator.client.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import { TRPC_React } from ":trpc/client";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import { useSession } from "@1.modules/auth.next/react";
 import { NotificationGroup } from "@1.modules/notification.domain";
 import { DotIndicator } from "@1.modules/notification.ui/DotIndicator";
@@ -11,8 +11,8 @@ import { useAsync, useUpdateEffect } from "@react-hookz/web";
 
 export function Notification_DotIndicator() {
   const { status } = useSession();
-  const utils = TRPC_React.useUtils();
-  const { data: count_unread } = TRPC_React.notification.count_unread.useQuery(
+  const utils = trpc_client.useUtils();
+  const { data: count_unread } = trpc_client.notification.count_unread.useQuery(
     {},
     {
       enabled: status === "authenticated",
@@ -43,9 +43,9 @@ export function Notification_DotIndicator() {
 
 export function MessageNews_DotIndicator() {
   const { status } = useSession();
-  const utils = TRPC_React.useUtils();
+  const utils = trpc_client.useUtils();
   const { data: count_unread, dataUpdatedAt } =
-    TRPC_React.notification.count_unread.useQuery(
+    trpc_client.notification.count_unread.useQuery(
       {
         type: NotificationGroup.Enum.INBOX,
       },
@@ -64,9 +64,9 @@ export function MessageNews_DotIndicator() {
 
 export function ExchangeNews_DotIndicator() {
   const { status } = useSession();
-  const utils = TRPC_React.useUtils();
+  const utils = trpc_client.useUtils();
   const { data: count_unread, dataUpdatedAt } =
-    TRPC_React.notification.count_unread.useQuery(
+    trpc_client.notification.count_unread.useQuery(
       {
         type: NotificationGroup.Enum.EXCHANGE,
       },
@@ -85,7 +85,7 @@ export function ExchangeNews_DotIndicator() {
 
 export function NewsInMessage_Indicator() {
   const { status } = useSession();
-  const { data: count_unread } = TRPC_React.notification.count_unread.useQuery(
+  const { data: count_unread } = trpc_client.notification.count_unread.useQuery(
     {
       type: NotificationGroup.Enum.INBOX,
     },
@@ -96,7 +96,7 @@ export function NewsInMessage_Indicator() {
 
 export function NewsInExchange_Indicator() {
   const { status } = useSession();
-  const { data: count_unread } = TRPC_React.notification.count_unread.useQuery(
+  const { data: count_unread } = trpc_client.notification.count_unread.useQuery(
     {
       type: NotificationGroup.Enum.EXCHANGE,
     },
diff --git a/apps/www/components/shell/AuthSessionProvider.tsx b/apps/www/components/shell/AuthSessionProvider.tsx
index f06fb80b2..f73c178fa 100644
--- a/apps/www/components/shell/AuthSessionProvider.tsx
+++ b/apps/www/components/shell/AuthSessionProvider.tsx
@@ -1,9 +1,12 @@
 "use client";
+
 import type { Session } from "@1.modules/auth.next";
 import { SessionProvider } from "@1.modules/auth.next/react";
 import { sendGAEvent } from "@next/third-parties/google";
 import { useEffect, type PropsWithChildren } from "react";
 
+//
+
 export function AuthSessionProvider({
   children,
   session,
diff --git a/apps/www/components/shell/RootProviders.tsx b/apps/www/components/shell/RootProviders.tsx
index eda311e4f..e674decde 100644
--- a/apps/www/components/shell/RootProviders.tsx
+++ b/apps/www/components/shell/RootProviders.tsx
@@ -1,7 +1,7 @@
 "use client";
 
 import { LegalProvider } from ":components/terms/context";
-import { TrpcProvider } from ":trpc/client";
+import { TrpcRootProvider } from ":trpc/root";
 import { SessionProvider } from "@1.modules/auth.next/react";
 import { useMediaQuery } from "@react-hookz/web";
 import {
@@ -27,7 +27,7 @@ export function RootProviders({ children }: PropsWithChildren) {
       <LegalProvider>
         <AuthSessionProvider>
           <ReactQueryClientProvider>
-            <TrpcProvider>{children}</TrpcProvider>
+            <TrpcRootProvider>{children}</TrpcRootProvider>
           </ReactQueryClientProvider>
         </AuthSessionProvider>
       </LegalProvider>
diff --git a/apps/www/app/(main)/exchanges/_client/Exchanges_Filter.tsx b/apps/www/widgets/exchanges/filter/Exchanges_Filter.tsx
similarity index 100%
rename from apps/www/app/(main)/exchanges/_client/Exchanges_Filter.tsx
rename to apps/www/widgets/exchanges/filter/Exchanges_Filter.tsx
diff --git a/apps/www/widgets/exchanges/filter/index.ts b/apps/www/widgets/exchanges/filter/index.ts
new file mode 100644
index 000000000..f36d6ef5d
--- /dev/null
+++ b/apps/www/widgets/exchanges/filter/index.ts
@@ -0,0 +1,3 @@
+//
+
+export { Exchanges_Filter } from "./Exchanges_Filter";
diff --git a/apps/www/app/(main)/exchanges/_client/List.tsx b/apps/www/widgets/exchanges/list/List.tsx
similarity index 93%
rename from apps/www/app/(main)/exchanges/_client/List.tsx
rename to apps/www/widgets/exchanges/list/List.tsx
index d73f0d4a7..1f5c6e86c 100644
--- a/apps/www/app/(main)/exchanges/_client/List.tsx
+++ b/apps/www/widgets/exchanges/list/List.tsx
@@ -1,8 +1,9 @@
 "use client";
 
 import type { inferInfiniteQueryObserverSuccessResult } from ":components/inferQueryResult";
-import { TRPC_React } from ":trpc/client";
+import { Loading_Placeholder } from ":components/placeholder/Loading_Placeholder";
 import { Exchange_Card } from ":widgets/exchanges/card";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import { useSession } from "@1.modules/auth.next/react";
 import type { Entity } from "@1.modules/core/domain";
 import { Exchange_Filter, type Exchange } from "@1.modules/exchange.domain";
@@ -13,7 +14,6 @@ import { useSearchParams } from "next/navigation";
 import { useEffect, type ComponentProps, type ReactNode } from "react";
 import { match, P } from "ts-pattern";
 import type { z } from "zod";
-import Loading_Placeholder from "../loading";
 
 //
 
@@ -22,7 +22,7 @@ function useQueryExchanges(input: {
   filter: z.infer<typeof Exchange_Filter> | undefined;
   search: string | undefined;
 }) {
-  return TRPC_React.exchanges.find.useInfiniteQuery(input, {
+  return trpc_client.exchanges.find.useInfiniteQuery(input, {
     getNextPageParam: ({ next_cursor }) => next_cursor,
     keepPreviousData: true,
   });
@@ -116,7 +116,7 @@ function Item({ id }: Entity) {
 //
 
 function useQueryExchangeById(id: string) {
-  return TRPC_React.exchanges.by_id.useQuery(id);
+  return trpc_client.exchanges.by_id.useQuery(id);
 }
 
 function Exchange_byId({
diff --git a/apps/www/app/(main)/exchanges/_client/SearchForm.tsx b/apps/www/widgets/exchanges/list/SearchForm.tsx
similarity index 100%
rename from apps/www/app/(main)/exchanges/_client/SearchForm.tsx
rename to apps/www/widgets/exchanges/list/SearchForm.tsx
diff --git a/apps/www/widgets/exchanges/list/index.ts b/apps/www/widgets/exchanges/list/index.ts
new file mode 100644
index 000000000..23d98aa2c
--- /dev/null
+++ b/apps/www/widgets/exchanges/list/index.ts
@@ -0,0 +1,4 @@
+//
+
+export { default as List } from "./List";
+export { default as SearchForm } from "./SearchForm";
diff --git a/packages/@1/infra/database/seeding/inbox/greetings.ts b/packages/@1/infra/database/seeding/inbox/greetings.ts
new file mode 100644
index 000000000..175a5cb82
--- /dev/null
+++ b/packages/@1/infra/database/seeding/inbox/greetings.ts
@@ -0,0 +1,35 @@
+//
+
+import { PrismaClient } from "#prisma/client";
+
+//
+
+export async function create_greatings_message(
+  prisma: PrismaClient,
+  author_profile_id: string,
+  recipient_profile_id: string,
+  message = "Bonjour",
+) {
+  await prisma.notification.create({
+    data: {
+      created_at: new Date(),
+      id: "greatings_notification_id",
+      inbox_message: {
+        create: {
+          message: {
+            create: {
+              author: { connect: { id: recipient_profile_id } },
+              content: message,
+              created_at: new Date(),
+              thread: { create: { id: "greatings_thread_id" } },
+              updated_at: new Date(),
+            },
+          },
+        },
+      },
+      owner: { connect: { id: author_profile_id } },
+      read_at: null,
+      type: "INBOX_NEW_MESSAGE",
+    },
+  });
+}
diff --git a/packages/@1/infra/database/seeding/index.ts b/packages/@1/infra/database/seeding/index.ts
index 7f4dc9a6b..1d083d6ca 100644
--- a/packages/@1/infra/database/seeding/index.ts
+++ b/packages/@1/infra/database/seeding/index.ts
@@ -4,6 +4,7 @@ export * from "./category/film";
 export * from "./category/masterclass";
 export * from "./exchange/slap";
 export * from "./exchange/the_creator";
+export * from "./inbox/greetings";
 export * from "./opportunity/concert_20240915";
 export * from "./partner/vulfpeck";
 export * from "./studient/douglas";
diff --git a/packages/@1/infra/database/testing/index.ts b/packages/@1/infra/database/testing/index.ts
index d74e55079..b7c636ff4 100644
--- a/packages/@1/infra/database/testing/index.ts
+++ b/packages/@1/infra/database/testing/index.ts
@@ -38,3 +38,19 @@ export async function empty_database() {
   await client.exec(`DROP SCHEMA public CASCADE;`);
   await client.exec(`CREATE SCHEMA public;`);
 }
+
+export async function database_status() {
+  console.log("🕵️ DATABASE STATUS");
+  console.log({
+    exchange_message_notification:
+      await prisma.exchangeMessageNotification.count(),
+    inbox_message_notification: await prisma.inboxMessageNotification.count(),
+    inbox_thread: await prisma.inboxThread.count(),
+    notification: await prisma.notification.count(),
+    profile_added_notification: await prisma.profileAddedNotification.count(),
+    profile: await prisma.profile.count(),
+    student: await prisma.student.count(),
+    thread: await prisma.thread.count(),
+    user: await prisma.user.count(),
+  });
+}
diff --git a/packages/@1/modules/exchange/api/src/index.ts b/packages/@1/modules/exchange/api/src/index.ts
index 29cbf03c6..cada983a7 100644
--- a/packages/@1/modules/exchange/api/src/index.ts
+++ b/packages/@1/modules/exchange/api/src/index.ts
@@ -5,11 +5,18 @@ import {
   Deal_Status_Schema,
   Exchange_Create_Schema,
 } from "@1.modules/exchange.domain";
-import { next_auth_procedure, procedure, router } from "@1.modules/trpc";
+import {
+  mergeRouters,
+  next_auth_procedure,
+  procedure,
+  router,
+} from "@1.modules/trpc";
 import { z } from "zod";
 import { me } from "./me";
-import by_id from "./public/by_id";
-import find_router from "./public/find";
+import by_id_api_router from "./public/by_id";
+import find_api_router from "./public/find";
+
+//
 
 const exchange_api_router = router({
   //
@@ -41,10 +48,6 @@ const exchange_api_router = router({
 
   //
 
-  by_id,
-
-  //
-
   by_particitpant: next_auth_procedure
     .input(
       z.object({
@@ -133,11 +136,11 @@ const exchange_api_router = router({
     }),
 
   //
-
-  find: find_router,
-
-  //
 });
 
-export default exchange_api_router;
+export default mergeRouters(
+  by_id_api_router,
+  exchange_api_router,
+  find_api_router,
+);
 export type ExchangeApiRouter = typeof exchange_api_router;
diff --git a/packages/@1/modules/exchange/api/src/public/by_id.e2e.test.ts b/packages/@1/modules/exchange/api/src/public/by_id.e2e.test.ts
index 8449f49da..01adab76a 100644
--- a/packages/@1/modules/exchange/api/src/public/by_id.e2e.test.ts
+++ b/packages/@1/modules/exchange/api/src/public/by_id.e2e.test.ts
@@ -8,45 +8,30 @@ import {
   create_slap_exchange,
 } from "@1.infra/database/seeding";
 import prisma, { empty_database, migrate } from "@1.infra/database/testing";
-import {
-  create_nextauth_header,
-  createCallerFactory,
-  router,
-} from "@1.modules/trpc";
-import { douglas_golden_nextauth_header } from "@1.modules/trpc/testing";
+import { createCallerFactory } from "@1.modules/trpc";
+import { douglas_student_session } from "@1.modules/trpc/testing";
 import {
   afterEach,
   beforeAll,
   beforeEach,
   describe,
   expect,
-  setSystemTime,
   test,
 } from "bun:test";
-import exchange_by_id from "./by_id";
-
-//
-
-const NEXTAUTH_SECRET = "🔑";
-
-beforeAll(() => {
-  process.env["NEXTAUTH_SECRET"] = NEXTAUTH_SECRET;
-});
+import by_id_api_router from "./by_id";
 
 //
 
 beforeAll(empty_database);
 beforeAll(migrate);
-beforeAll(() => {
-  setSystemTime(new Date("2011-11-11"));
-});
 
 //
 
 describe("visitor", () => {
   test("should return a sanitize exchange", async () => {
-    const caller = createCallerFactory(router({ by_id: exchange_by_id }));
+    const caller = createCallerFactory(by_id_api_router);
     const trpc = caller({
+      auth: () => null,
       prisma,
     } as any);
     const exchange = await trpc.by_id("slap_exchange_id");
@@ -55,16 +40,10 @@ describe("visitor", () => {
 });
 
 describe("connected studient", () => {
-  let nextauth_header: Awaited<ReturnType<typeof create_nextauth_header>>;
-
-  beforeAll(async () => {
-    nextauth_header = douglas_golden_nextauth_header;
-  });
-
   test("should return a sanitize exchange", async () => {
-    const caller = createCallerFactory(router({ by_id: exchange_by_id }));
+    const caller = createCallerFactory(by_id_api_router);
     const trpc = caller({
-      headers: { ...nextauth_header },
+      auth: () => douglas_student_session,
       prisma,
     } as any);
     const exchange = await trpc.by_id("slap_exchange_id");
diff --git a/packages/@1/modules/exchange/api/src/public/by_id.ts b/packages/@1/modules/exchange/api/src/public/by_id.ts
index f57388042..354b24648 100644
--- a/packages/@1/modules/exchange/api/src/public/by_id.ts
+++ b/packages/@1/modules/exchange/api/src/public/by_id.ts
@@ -1,63 +1,65 @@
 //
 
 import { Deal_Status_Schema } from "@1.modules/exchange.domain";
-import { maybe_next_auth_procedure } from "@1.modules/trpc";
+import { maybe_session_procedure, router } from "@1.modules/trpc";
 import { z } from "zod";
 
 //
 
-export default maybe_next_auth_procedure
-  .input(z.string())
-  .use(async ({ ctx: { payload, prisma }, input: id, next }) => {
-    const profile_id = payload.profile?.id;
-    const get_exchange_by_id = prisma.exchange.findUniqueOrThrow({
-      include: {
-        category: true,
-        return: true,
-        owner: {
-          select: {
-            profile: {
-              select: { id: true, name: true, image: true },
+export default router({
+  by_id: maybe_session_procedure
+    .input(z.string())
+    .use(async ({ ctx: { prisma, session }, input: id, next }) => {
+      const profile_id = session?.profile.id;
+      const get_exchange_by_id = prisma.exchange.findUniqueOrThrow({
+        include: {
+          category: true,
+          return: true,
+          owner: {
+            select: {
+              profile: {
+                select: { id: true, name: true, image: true },
+              },
+              university: true,
             },
-            university: true,
           },
-        },
-        deals: {
-          select: {
-            id: true,
-            status: true,
-            participant: { select: { profile: { select: { id: true } } } },
+          deals: {
+            select: {
+              id: true,
+              status: true,
+              participant: { select: { profile: { select: { id: true } } } },
+            },
+            where: { status: Deal_Status_Schema.Enum.APPROVED },
           },
-          where: { status: Deal_Status_Schema.Enum.APPROVED },
         },
-      },
-      where: { id },
-    });
+        where: { id },
+      });
 
-    /**
-     * Ensure to remove participant profile information for
-     */
-    const sanitize = async (exchange: Awaited<typeof get_exchange_by_id>) => {
-      const { deals } = exchange;
-      return {
-        ...exchange,
-        deals: deals.map((deal) => ({
-          ...deal,
-          participant:
-            deal.participant.profile.id === profile_id
-              ? deal.participant
-              : undefined,
-        })),
+      /**
+       * Ensure to remove participant profile information for
+       */
+      const sanitize = async (exchange: Awaited<typeof get_exchange_by_id>) => {
+        const { deals } = exchange;
+        return {
+          ...exchange,
+          deals: deals.map((deal) => ({
+            ...deal,
+            participant:
+              deal.participant.profile.id === profile_id
+                ? deal.participant
+                : undefined,
+          })),
+        };
       };
-    };
 
-    //
+      //
 
-    return next({
-      ctx: { get_exchange_by_id, sanitize },
-    });
-  })
-  .query(async ({ ctx: { get_exchange_by_id, sanitize } }) => {
-    const exchange = await get_exchange_by_id;
-    return sanitize(exchange);
-  });
+      return next({
+        ctx: { get_exchange_by_id, sanitize },
+      });
+    })
+    .query(async ({ ctx: { get_exchange_by_id, sanitize } }) => {
+      const exchange = await get_exchange_by_id;
+      return sanitize(exchange);
+    }),
+});
diff --git a/packages/@1/modules/exchange/api/src/public/find.e2e.test.ts b/packages/@1/modules/exchange/api/src/public/find.e2e.test.ts
index 16b7124ae..1baf1d5d1 100644
--- a/packages/@1/modules/exchange/api/src/public/find.e2e.test.ts
+++ b/packages/@1/modules/exchange/api/src/public/find.e2e.test.ts
@@ -7,13 +7,9 @@ import {
   create_slap_exchange,
 } from "@1.infra/database/seeding";
 import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory } from "@1.modules/trpc";
 import {
-  create_nextauth_header,
-  createCallerFactory,
-  router,
-} from "@1.modules/trpc";
-import {
-  douglas_golden_nextauth_header,
+  douglas_student_session,
   NEXTAUTH_SECRET,
 } from "@1.modules/trpc/testing";
 import {
@@ -25,7 +21,7 @@ import {
   setSystemTime,
   test,
 } from "bun:test";
-import find from "./find";
+import find_api_router from "./find";
 
 //
 
@@ -45,8 +41,8 @@ beforeAll(() => {
 
 describe("visitor", () => {
   test("should return latest exchanges", async () => {
-    const caller = createCallerFactory(router({ find }));
-    const trpc = caller({ prisma } as any);
+    const caller = createCallerFactory(find_api_router);
+    const trpc = caller({ auth: () => null, prisma } as any);
     const exchange = await trpc.find({});
     expect(exchange).toMatchSnapshot();
   });
@@ -56,8 +52,8 @@ describe("visitor", () => {
       data: { is_active: false },
       where: { id: "slap_exchange_id" },
     });
-    const caller = createCallerFactory(router({ find }));
-    const trpc = caller({ prisma } as any);
+    const caller = createCallerFactory(find_api_router);
+    const trpc = caller({ auth: () => null, prisma } as any);
     const exchange = await trpc.find({});
     expect(exchange).toMatchSnapshot();
   });
@@ -67,24 +63,18 @@ describe("visitor", () => {
       data: { expiry_date: new Date("2011-11-10") },
       where: { id: "slap_exchange_id" },
     });
-    const caller = createCallerFactory(router({ find }));
-    const trpc = caller({ prisma } as any);
+    const caller = createCallerFactory(find_api_router);
+    const trpc = caller({ auth: () => null, prisma } as any);
     const exchange = await trpc.find({});
     expect(exchange).toMatchSnapshot();
   });
 });
 
 describe("connected studient", () => {
-  let nextauth_header: Awaited<ReturnType<typeof create_nextauth_header>>;
-
-  beforeAll(async () => {
-    nextauth_header = douglas_golden_nextauth_header;
-  });
-
   test("should return latest exchanges", async () => {
-    const caller = createCallerFactory(router({ find }));
+    const caller = createCallerFactory(find_api_router);
     const trpc = caller({
-      headers: { ...nextauth_header },
+      auth: () => douglas_student_session,
       prisma,
     } as any);
     const exchange = await trpc.find({});
@@ -96,9 +86,9 @@ describe("connected studient", () => {
       data: { blacklist: { create: { profile_id: "joedart_profile_id" } } },
       where: { id: "douglas_profile_id" },
     });
-    const caller = createCallerFactory(router({ find }));
+    const caller = createCallerFactory(find_api_router);
     const trpc = caller({
-      headers: { ...nextauth_header },
+      auth: () => douglas_student_session,
       prisma,
     } as any);
     const exchange = await trpc.find({});
@@ -110,9 +100,9 @@ describe("connected studient", () => {
       data: { blacklisted_by: { create: { owner_id: "joedart_profile_id" } } },
       where: { id: "douglas_profile_id" },
     });
-    const caller = createCallerFactory(router({ find }));
+    const caller = createCallerFactory(find_api_router);
     const trpc = caller({
-      headers: { ...nextauth_header },
+      auth: () => douglas_student_session,
       prisma,
     } as any);
     const exchange = await trpc.find({});
diff --git a/packages/@1/modules/exchange/api/src/public/find.ts b/packages/@1/modules/exchange/api/src/public/find.ts
index c5c44028a..dab65fef4 100644
--- a/packages/@1/modules/exchange/api/src/public/find.ts
+++ b/packages/@1/modules/exchange/api/src/public/find.ts
@@ -2,7 +2,11 @@
 
 import type { Prisma } from "@1.infra/database";
 import { Exchange_Filter } from "@1.modules/exchange.domain";
-import { maybe_next_auth_procedure, with_next_cursor } from "@1.modules/trpc";
+import {
+  maybe_session_procedure,
+  router,
+  with_next_cursor,
+} from "@1.modules/trpc";
 import { endOfYesterday } from "date-fns";
 import { match, P } from "ts-pattern";
 import { z } from "zod";
@@ -19,84 +23,88 @@ const input_schema = z.object({
 
 //
 
-export default maybe_next_auth_procedure
-  .input(input_schema)
-  .query(async ({ ctx: { payload, prisma }, input }) => {
-    const { limit, category, cursor, search } = input;
-    const nerrow = match({ payload, input })
-      .with(
-        { payload: { profile: { role: "STUDENT" } } },
-        ({
-          payload: {
-            profile: { id: profile_id },
-          },
-          input: { filter },
-        }) => profile_filter(profile_id, filter),
-      )
-      .otherwise(() => ({}));
+export default router({
+  find: maybe_session_procedure
+    .input(input_schema)
+    .query(async ({ ctx: { session, prisma }, input }) => {
+      const { limit, category, cursor, search } = input;
+      const nerrow = match({ session, input })
+        .with(
+          { session: { profile: { role: "STUDENT" } } },
+          ({
+            session: {
+              profile: { id: profile_id },
+            },
+            input: { filter },
+          }) => profile_filter(profile_id, filter),
+        )
+        .otherwise(() => ({}));
 
-    const search_where: Prisma.ExchangeWhereInput = {
-      OR: [
-        { title: { contains: search ?? "", mode: "insensitive" } },
-        {
-          description: { contains: search ?? "", mode: "insensitive" },
-        },
-        { location: { contains: search ?? "", mode: "insensitive" } },
-        {
-          owner: {
-            profile: {
-              name: { contains: search ?? "", mode: "insensitive" },
+      const search_where: Prisma.ExchangeWhereInput = {
+        OR: [
+          { title: { contains: search ?? "", mode: "insensitive" } },
+          {
+            description: { contains: search ?? "", mode: "insensitive" },
+          },
+          { location: { contains: search ?? "", mode: "insensitive" } },
+          {
+            owner: {
+              profile: {
+                name: { contains: search ?? "", mode: "insensitive" },
+              },
             },
           },
-        },
-      ],
-    };
+        ],
+      };
 
-    const active_exchanges_where: Prisma.ExchangeWhereInput = {
-      is_active: true,
-      OR: [{ expiry_date: null }, { expiry_date: { gte: endOfYesterday() } }],
-    };
-    const category_where: Prisma.ExchangeWhereInput = category
-      ? { category: { slug: category } }
-      : {};
+      const active_exchanges_where: Prisma.ExchangeWhereInput = {
+        is_active: true,
+        OR: [{ expiry_date: null }, { expiry_date: { gte: endOfYesterday() } }],
+      };
+      const category_where: Prisma.ExchangeWhereInput = category
+        ? { category: { slug: category } }
+        : {};
 
-    const where_not_in_profile_blacklist = match(payload.profile)
-      .with(
-        { id: P.select() },
-        (profile_id): Prisma.ExchangeWhereInput => ({
-          AND: [
-            { owner: { profile: { blacklist: { none: { profile_id } } } } },
-            {
-              owner: {
-                profile: { blacklisted_by: { none: { owner_id: profile_id } } },
+      const where_not_in_profile_blacklist = match(session?.profile)
+        .with(
+          { id: P.select() },
+          (profile_id): Prisma.ExchangeWhereInput => ({
+            AND: [
+              { owner: { profile: { blacklist: { none: { profile_id } } } } },
+              {
+                owner: {
+                  profile: {
+                    blacklisted_by: { none: { owner_id: profile_id } },
+                  },
+                },
               },
-            },
-          ],
-        }),
-      )
-      .otherwise(() => ({}));
+            ],
+          }),
+        )
+        .otherwise(() => ({}));
 
-    const items = await prisma.exchange.findMany({
-      ...(cursor ? { cursor: { id: cursor } } : {}),
-      orderBy: [
-        { expiry_date: { sort: "asc", nulls: "last" } },
-        { created_at: "desc" },
-        { id: "desc" },
-      ],
-      take: limit + 1,
-      where: {
-        AND: [
-          where_not_in_profile_blacklist,
-          search_where,
-          active_exchanges_where,
-          category_where,
-          nerrow,
+      const items = await prisma.exchange.findMany({
+        ...(cursor ? { cursor: { id: cursor } } : {}),
+        orderBy: [
+          { expiry_date: { sort: "asc", nulls: "last" } },
+          { created_at: "desc" },
+          { id: "desc" },
         ],
-      },
-    });
+        take: limit + 1,
+        where: {
+          AND: [
+            where_not_in_profile_blacklist,
+            search_where,
+            active_exchanges_where,
+            category_where,
+            nerrow,
+          ],
+        },
+      });
 
-    return with_next_cursor(limit, items)((item) => item.id);
-  });
+      return with_next_cursor(limit, items)((item) => item.id);
+    }),
+});
 
 function profile_filter(
   profile_id: string,
diff --git a/packages/@1/modules/notification/api/src/count_unread.ts b/packages/@1/modules/notification/api/src/count_unread.ts
deleted file mode 100644
index 29157cc0f..000000000
--- a/packages/@1/modules/notification/api/src/count_unread.ts
+++ /dev/null
@@ -1,76 +0,0 @@
-//
-
-import { NotificationType } from "@1.infra/database";
-import { NotificationGroup } from "@1.modules/notification.domain";
-import { next_auth_procedure } from "@1.modules/trpc";
-import { P, match } from "ts-pattern";
-import { z } from "zod";
-
-//
-
-const EXCHANGE_NOTIFICATIONS = [
-  NotificationType.EXCHANGE_COMPLETED,
-  NotificationType.EXCHANGE_NEW_MESSAGE,
-  NotificationType.EXCHANGE_NEW_PARTICIPANT,
-];
-
-//
-
-export default next_auth_procedure
-  .input(
-    z.object({
-      type: NotificationGroup.optional(),
-    }),
-  )
-  .query(async ({ input: { type }, ctx: { prisma, payload } }) => {
-    const { id: owner_id } = payload.profile;
-
-    const sub_count = await match(type)
-      .with(NotificationGroup.Enum.INBOX, async () => {
-        const data = await prisma.inboxMessageNotification.findMany({
-          select: { message: { select: { thread_id: true } } },
-          where: {
-            notification: {
-              owner_id,
-              read_at: null,
-              type: NotificationType.INBOX_NEW_MESSAGE,
-            },
-          },
-        });
-        return new Set(data.map(({ message }) => message?.thread_id));
-      })
-      .with(NotificationGroup.Enum.EXCHANGE, async () => {
-        const data = await prisma.exchangeMessageNotification.findMany({
-          select: { message: { select: { thread_id: true } } },
-          where: {
-            notification: {
-              owner_id,
-              read_at: null,
-              type: {
-                in: EXCHANGE_NOTIFICATIONS,
-              },
-            },
-          },
-        });
-        return new Set(data.map(({ message }) => message?.thread_id));
-      })
-      .otherwise(() => Promise.resolve(null));
-
-    if (sub_count) return sub_count.size;
-
-    const notification_type = match(type)
-      .with(NotificationGroup.Enum.EXCHANGE, () => ({
-        type: {
-          in: EXCHANGE_NOTIFICATIONS,
-        },
-      }))
-      .with(NotificationGroup.Enum.INBOX, () => ({
-        type: NotificationType.INBOX_NEW_MESSAGE,
-      }))
-      .with(P.nullish, () => ({}))
-      .exhaustive();
-
-    return prisma.notification.count({
-      where: { owner_id, read_at: null, ...notification_type },
-    });
-  });
diff --git a/packages/@1/modules/notification/api/src/count_unread/__snapshots__/count_unread.e2e.test.ts.snap b/packages/@1/modules/notification/api/src/count_unread/__snapshots__/count_unread.e2e.test.ts.snap
new file mode 100644
index 000000000..850fb2b5d
--- /dev/null
+++ b/packages/@1/modules/notification/api/src/count_unread/__snapshots__/count_unread.e2e.test.ts.snap
@@ -0,0 +1,7 @@
+// Bun Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`return count of all unread notifications 1`] = `6`;
+
+exports[`return count of exchange notifications 1`] = `1`;
+
+exports[`return count of inbox notifications 1`] = `1`;
diff --git a/packages/@1/modules/notification/api/src/count_unread/count_unread.e2e.test.ts b/packages/@1/modules/notification/api/src/count_unread/count_unread.e2e.test.ts
new file mode 100644
index 000000000..3ee5933e7
--- /dev/null
+++ b/packages/@1/modules/notification/api/src/count_unread/count_unread.e2e.test.ts
@@ -0,0 +1,131 @@
+//
+
+import {
+  create_douglas_student,
+  create_greatings_message,
+  create_joedart_student,
+} from "@1.infra/database/seeding";
+import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory } from "@1.modules/trpc";
+import { douglas_student_session } from "@1.modules/trpc/testing";
+import { afterEach, beforeAll, beforeEach, expect, test } from "bun:test";
+import api_router from "./count_unread";
+
+//
+
+beforeAll(empty_database);
+beforeAll(migrate);
+
+//
+
+test("return count of all unread notifications", async () => {
+  const caller = createCallerFactory(api_router);
+  const trpc = caller({
+    auth: () => douglas_student_session,
+    prisma,
+  } as any);
+  const data = await trpc.count_unread({});
+  expect(data).toMatchSnapshot();
+});
+
+test("return count of exchange notifications", async () => {
+  const caller = createCallerFactory(api_router);
+  const trpc = caller({
+    auth: () => douglas_student_session,
+    prisma,
+  } as any);
+  const data = await trpc.count_unread({ type: "EXCHANGE" });
+  expect(data).toMatchSnapshot();
+});
+
+test("return count of inbox notifications", async () => {
+  const caller = createCallerFactory(api_router);
+  const trpc = caller({
+    auth: () => douglas_student_session,
+    prisma,
+  } as any);
+  const data = await trpc.count_unread({ type: "INBOX" });
+  expect(data).toMatchSnapshot();
+});
+
+//
+
+beforeEach(async function seed() {
+  await create_douglas_student(prisma);
+  await create_joedart_student(prisma);
+  await create_greatings_message(
+    prisma,
+    "douglas_profile_id",
+    "joedart_profile_id",
+  );
+
+  const { id: message_id } = await prisma.message.create({
+    data: {
+      thread: { create: {} },
+      author: { connect: { id: "douglas_profile_id" } },
+      content: "World",
+      created_at: new Date(),
+      updated_at: new Date(),
+    },
+    select: { id: true },
+  });
+
+  await prisma.exchangeMessageNotification.create({
+    data: {
+      message: { connect: { id: message_id } },
+      notification: {
+        create: {
+          owner_id: "douglas_profile_id",
+          read_at: null,
+          type: "EXCHANGE_COMPLETED",
+        },
+      },
+    },
+  });
+
+  await prisma.exchangeMessageNotification.create({
+    data: {
+      message: { connect: { id: message_id } },
+      notification: {
+        create: {
+          owner_id: "douglas_profile_id",
+          read_at: null,
+          type: "EXCHANGE_NEW_MESSAGE",
+        },
+      },
+    },
+  });
+
+  await prisma.exchangeMessageNotification.create({
+    data: {
+      message: { connect: { id: message_id } },
+      notification: {
+        create: {
+          owner_id: "douglas_profile_id",
+          read_at: null,
+          type: "EXCHANGE_NEW_PARTICIPANT",
+        },
+      },
+    },
+  });
+
+  await prisma.notification.createMany({
+    data: [
+      {
+        owner_id: "douglas_profile_id",
+        read_at: null,
+        type: "FORUM_NEW_AWNSER",
+      },
+      {
+        owner_id: "douglas_profile_id",
+        read_at: null,
+        type: "PROFILE_ADDED",
+      },
+    ],
+  });
+});
+
+afterEach(async function empty_delete_entries() {
+  await prisma.thread.deleteMany();
+  await prisma.user.deleteMany();
+});
diff --git a/packages/@1/modules/notification/api/src/count_unread/count_unread.ts b/packages/@1/modules/notification/api/src/count_unread/count_unread.ts
new file mode 100644
index 000000000..1878ccd94
--- /dev/null
+++ b/packages/@1/modules/notification/api/src/count_unread/count_unread.ts
@@ -0,0 +1,78 @@
+//
+
+import { NotificationType } from "@1.infra/database";
+import { NotificationGroup } from "@1.modules/notification.domain";
+import { router, session_procedure } from "@1.modules/trpc";
+import { P, match } from "ts-pattern";
+import { z } from "zod";
+
+//
+
+const EXCHANGE_NOTIFICATIONS = [
+  NotificationType.EXCHANGE_COMPLETED,
+  NotificationType.EXCHANGE_NEW_MESSAGE,
+  NotificationType.EXCHANGE_NEW_PARTICIPANT,
+];
+
+//
+
+export default router({
+  count_unread: session_procedure
+    .input(
+      z.object({
+        type: NotificationGroup.optional(),
+      }),
+    )
+    .query(async ({ input: { type }, ctx: { prisma, session } }) => {
+      const { id: owner_id } = session.profile;
+
+      const sub_count = await match(type)
+        .with(NotificationGroup.Enum.INBOX, async () => {
+          const data = await prisma.inboxMessageNotification.findMany({
+            select: { message: { select: { thread_id: true } } },
+            where: {
+              notification: {
+                owner_id,
+                read_at: null,
+                type: NotificationType.INBOX_NEW_MESSAGE,
+              },
+            },
+          });
+          return new Set(data.map(({ message }) => message?.thread_id));
+        })
+        .with(NotificationGroup.Enum.EXCHANGE, async () => {
+          const data = await prisma.exchangeMessageNotification.findMany({
+            select: { message: { select: { thread_id: true } } },
+            where: {
+              notification: {
+                owner_id,
+                read_at: null,
+                type: {
+                  in: EXCHANGE_NOTIFICATIONS,
+                },
+              },
+            },
+          });
+          return new Set(data.map(({ message }) => message?.thread_id));
+        })
+        .otherwise(() => Promise.resolve(null));
+
+      if (sub_count) return sub_count.size;
+
+      const notification_type = match(type)
+        .with(NotificationGroup.Enum.EXCHANGE, () => ({
+          type: {
+            in: EXCHANGE_NOTIFICATIONS,
+          },
+        }))
+        .with(NotificationGroup.Enum.INBOX, () => ({
+          type: NotificationType.INBOX_NEW_MESSAGE,
+        }))
+        .with(P.nullish, () => ({}))
+        .exhaustive();
+
+      return prisma.notification.count({
+        where: { owner_id, read_at: null, ...notification_type },
+      });
+    }),
+});
diff --git a/packages/@1/modules/notification/api/src/count_unread/index.ts b/packages/@1/modules/notification/api/src/count_unread/index.ts
new file mode 100644
index 000000000..436aa930e
--- /dev/null
+++ b/packages/@1/modules/notification/api/src/count_unread/index.ts
@@ -0,0 +1,3 @@
+//
+
+export { default as count_unread_api_router } from "./count_unread";
diff --git a/packages/@1/modules/notification/api/src/find.ts b/packages/@1/modules/notification/api/src/find.ts
deleted file mode 100644
index 525b362d2..000000000
--- a/packages/@1/modules/notification/api/src/find.ts
+++ /dev/null
@@ -1,93 +0,0 @@
-//
-
-import type { Prisma } from "@1.infra/database";
-import { next_auth_procedure } from "@1.modules/trpc";
-import { z } from "zod";
-
-//
-
-export default next_auth_procedure
-  .input(
-    z.object({
-      cursor: z.string().optional(),
-      limit: z.number().min(1).max(10).default(10),
-    }),
-  )
-  .query(async ({ input, ctx: { prisma, payload } }) => {
-    const { cursor, limit } = input;
-    const { id: owner_id } = payload.profile;
-    const message_select: Prisma.MessageSelect = {
-      author: { select: { name: true, id: true, image: true } },
-      thread_id: true,
-    };
-
-    const items = await prisma.notification.findMany({
-      ...(cursor ? { cursor: { id: cursor } } : {}),
-      orderBy: { created_at: "desc" },
-      take: limit + 1,
-      where: { owner_id },
-      include: {
-        inbox_message: {
-          select: {
-            message: {
-              select: message_select,
-            },
-          },
-        },
-        exchange_message: {
-          select: {
-            exchange: {
-              select: {
-                id: true,
-                owner: {
-                  select: {
-                    profile: { select: { id: true, name: true, image: true } },
-                  },
-                },
-                title: true,
-              },
-            },
-            message: {
-              select: message_select,
-            },
-          },
-        },
-        forum_message: {
-          select: {
-            answer: {
-              select: {
-                owner: {
-                  select: {
-                    profile_id: true,
-                    profile: { select: { name: true, image: true } },
-                  },
-                },
-                parent_id: true,
-                parent: { select: { id: true, title: true } },
-              },
-            },
-            answer_id: true,
-          },
-        },
-        profile_added: {
-          select: {
-            profile: {
-              select: {
-                name: true,
-                id: true,
-                image: true,
-              },
-            },
-          },
-        },
-      },
-    });
-
-    let prevCursor: typeof cursor | undefined = undefined;
-    if (items.length > limit) {
-      const nextItem = items.pop()!;
-      prevCursor = nextItem.id;
-    }
-
-    return { data: items, prevCursor };
-  });
diff --git a/packages/@1/modules/notification/api/src/find/__snapshots__/find.e2e.test.ts.snap b/packages/@1/modules/notification/api/src/find/__snapshots__/find.e2e.test.ts.snap
new file mode 100644
index 000000000..d09c0a53c
--- /dev/null
+++ b/packages/@1/modules/notification/api/src/find/__snapshots__/find.e2e.test.ts.snap
@@ -0,0 +1,29 @@
+// Bun Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`should return latest notifications 1`] = `
+{
+  "data": [
+    {
+      "created_at": 2011-11-11T00:00:00.000Z,
+      "exchange_message": null,
+      "forum_message": null,
+      "id": "greatings_notification_id",
+      "inbox_message": {
+        "message": {
+          "author": {
+            "id": "joedart_profile_id",
+            "image": "https://picsum.photos/200/300",
+            "name": "Joe Dart",
+          },
+          "thread_id": "greatings_thread_id",
+        },
+      },
+      "owner_id": "douglas_profile_id",
+      "profile_added": null,
+      "read_at": null,
+      "type": "INBOX_NEW_MESSAGE",
+    },
+  ],
+  "prevCursor": undefined,
+}
+`;
diff --git a/packages/@1/modules/notification/api/src/find/find.e2e.test.ts b/packages/@1/modules/notification/api/src/find/find.e2e.test.ts
new file mode 100644
index 000000000..4e1a465d4
--- /dev/null
+++ b/packages/@1/modules/notification/api/src/find/find.e2e.test.ts
@@ -0,0 +1,57 @@
+//
+
+import {
+  create_douglas_student,
+  create_greatings_message,
+  create_joedart_student,
+} from "@1.infra/database/seeding";
+import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory } from "@1.modules/trpc";
+import { douglas_student_session } from "@1.modules/trpc/testing";
+import {
+  afterEach,
+  beforeAll,
+  beforeEach,
+  expect,
+  setSystemTime,
+  test,
+} from "bun:test";
+import find_api_router from "./find";
+
+//
+
+beforeAll(empty_database);
+beforeAll(migrate);
+beforeAll(() => {
+  setSystemTime(new Date("2011-11-11"));
+});
+
+//
+
+test("should return latest notifications", async () => {
+  const caller = createCallerFactory(find_api_router);
+  const trpc = caller({
+    auth: () => douglas_student_session,
+    prisma,
+  } as any);
+  const exchange = await trpc.find({});
+  expect(exchange).toMatchSnapshot();
+});
+
+//
+
+beforeEach(async function seed() {
+  await create_douglas_student(prisma);
+  await create_joedart_student(prisma);
+  await create_greatings_message(
+    prisma,
+    "douglas_profile_id",
+    "joedart_profile_id",
+  );
+});
+
+afterEach(async function empty_delete_entries() {
+  await prisma.category.deleteMany({});
+  await prisma.notification.deleteMany({});
+  await prisma.user.deleteMany({});
+});
diff --git a/packages/@1/modules/notification/api/src/find/find.ts b/packages/@1/modules/notification/api/src/find/find.ts
new file mode 100644
index 000000000..4ed1dc09e
--- /dev/null
+++ b/packages/@1/modules/notification/api/src/find/find.ts
@@ -0,0 +1,81 @@
+//
+
+import type { Prisma } from "@1.infra/database";
+import {
+  router,
+  session_procedure,
+  with_previous_cursor,
+} from "@1.modules/trpc";
+import { z } from "zod";
+
+//
+
+export default router({
+  find: session_procedure
+    .input(
+      z.object({
+        cursor: z.string().optional(),
+        limit: z.number().min(1).max(10).default(10),
+      }),
+    )
+    .query(async ({ input, ctx: { prisma, session } }) => {
+      const { cursor, limit } = input;
+      const { id: owner_id } = session.profile;
+      const message_select: Prisma.MessageSelect = {
+        author: { select: { name: true, id: true, image: true } },
+        thread_id: true,
+      };
+
+      const items = await prisma.notification.findMany({
+        ...(cursor ? { cursor: { id: cursor } } : {}),
+        orderBy: { created_at: "desc" },
+        take: limit + 1,
+        where: { owner_id },
+        include: {
+          inbox_message: { select: { message: { select: message_select } } },
+          exchange_message: {
+            select: {
+              exchange: {
+                select: {
+                  id: true,
+                  owner: {
+                    select: {
+                      profile: {
+                        select: { id: true, name: true, image: true },
+                      },
+                    },
+                  },
+                  title: true,
+                },
+              },
+              message: { select: message_select },
+            },
+          },
+          forum_message: {
+            select: {
+              answer: {
+                select: {
+                  owner: {
+                    select: {
+                      profile_id: true,
+                      profile: { select: { name: true, image: true } },
+                    },
+                  },
+                  parent_id: true,
+                  parent: { select: { id: true, title: true } },
+                },
+              },
+              answer_id: true,
+            },
+          },
+          profile_added: {
+            select: {
+              profile: { select: { name: true, id: true, image: true } },
+            },
+          },
+        },
+      });
+
+      return with_previous_cursor(limit, items)((item) => item.id);
+    }),
+});
diff --git a/packages/@1/modules/notification/api/src/find/index.ts b/packages/@1/modules/notification/api/src/find/index.ts
new file mode 100644
index 000000000..554151cdf
--- /dev/null
+++ b/packages/@1/modules/notification/api/src/find/index.ts
@@ -0,0 +1,3 @@
+//
+
+export { default as find_api_router } from "./find";
diff --git a/packages/@1/modules/notification/api/src/index.ts b/packages/@1/modules/notification/api/src/index.ts
index bb9ab9769..8421cfe50 100644
--- a/packages/@1/modules/notification/api/src/index.ts
+++ b/packages/@1/modules/notification/api/src/index.ts
@@ -1,16 +1,18 @@
 //
 
-import { router } from "@1.modules/trpc";
-import count_unread from "./count_unread";
-import find from "./find";
+import { mergeRouters, router } from "@1.modules/trpc";
+import { count_unread_api_router } from "./count_unread";
+import { find_api_router } from "./find";
 import mark_as_read from "./mark_as_read";
 
 //
 
 const notification_api_router = router({
-  count_unread: count_unread,
-  find: find,
   mark_as_read: mark_as_read,
 });
 
-export default notification_api_router;
+export default mergeRouters(
+  count_unread_api_router,
+  find_api_router,
+  notification_api_router,
+);
diff --git a/packages/@1/modules/trpc/src/testing/index.ts b/packages/@1/modules/trpc/src/testing/index.ts
index 39e770a09..467a0d58c 100644
--- a/packages/@1/modules/trpc/src/testing/index.ts
+++ b/packages/@1/modules/trpc/src/testing/index.ts
@@ -1,11 +1,24 @@
 //
 
+import type { Session } from "@1.modules/auth.next";
 import { create_nextauth_header } from "@1.modules/auth.next/jwt";
 
 //
 
 export const NEXTAUTH_SECRET = "🔑";
 
+export const douglas_student_session: Session = {
+  expires: "2022-12-31T23:59:59.999Z",
+  user: {},
+  header: { NEXTAUTH_TOKEN: "🔑" },
+  profile: {
+    id: "douglas_profile_id",
+    image: "https://picsum.photos/222/333",
+    name: "Douglas",
+    role: "STUDENT",
+  },
+};
+
 export const douglas_golden_nextauth_header = await create_nextauth_header({
   secret: "🔑",
   token: {
diff --git a/serkels.code-workspace b/serkels.code-workspace
index 4084b6504..47f4fec35 100644
--- a/serkels.code-workspace
+++ b/serkels.code-workspace
@@ -297,6 +297,17 @@
         "problemMatcher": ["$tsc-watch"],
         "runOptions": { "instanceLimit": 1 },
       },
+      {
+        "label": "🧪 Update Test Snapshots : Current file",
+        "command": "bun test --update-snapshots ${fileDirname}/${fileBasename}",
+        "type": "shell",
+        "group": "build",
+        "options": {
+          "cwd": "${workspaceFolder:root}",
+        },
+        "problemMatcher": ["$tsc-watch"],
+        "runOptions": { "instanceLimit": 1 },
+      },
       {
         "label": "🧪 Watch Test",
         "command": "bun test --watch",

From af575bb953a75a04a0ba74480771fc55d574088b Mon Sep 17 00:00:00 2001
From: Douglas DUTEIL <douglasduteil@gmail.com>
Date: Mon, 18 Nov 2024 02:55:31 +0100
Subject: [PATCH 2/3] SAVE

---
 .github/workflows/e2e.yaml                    |   1 +
 .../support/step_definitions/general.ts       |   4 +
 .../exchanges/create_exchange.feature         |  46 ++++
 .../exchanges/studient_filters.feature        |  12 +
 apps/e2e/features/notification/page.feature   |  10 +
 apps/e2e/features/partner/welcome.feature     |  12 +
 apps/e2e/features/studient/welcome.feature    |  12 +
 .../features/studient_exchanges/inbox.feature |  24 ++
 apps/www/app/(auth)/signup/student/page.tsx   |   5 +-
 .../[code]/(private)/bookmarks/layout.tsx     |   8 +-
 .../bookmarks/opportunities/page.tsx          |   4 +-
 .../[exchange_id]/edit/page.client.tsx        |   5 +-
 .../exchanges/[exchange_id]/edit/page.tsx     |   7 +-
 .../[thread_id]/_client/Conversation_Form.tsx |   2 +-
 .../[code]/(private)/exchanges/layout.tsx     |   2 +-
 .../[code]/(private)/exchanges/mine/page.tsx  |   2 +-
 .../[thread_id]/_client/Conversation_Form.tsx |   2 +-
 .../(private)/inbox/[thread_id]/page.tsx      |   2 +-
 .../inbox/write_to/[profile_id]/page.tsx      |   6 +-
 .../_client/Infinite_Contacts_List.tsx        |   2 +-
 .../[code]/(private)/inbox/write_to/page.tsx  |   2 +-
 .../[code]/(private)/notifications/layout.tsx |  10 +
 .../[code]/(private)/notifications/page.tsx   |   5 +-
 .../[code]/(private)/opportunities/layout.tsx |   2 +-
 .../parameters/_client/Avatar_Editor.tsx      |   2 +-
 .../parameters/_client/Profile_Editor.tsx     |   6 +-
 .../door/[code]/(private)/parameters/page.tsx |  14 +-
 .../[code]/(private)/parameters/upload.tsx    |   7 +-
 .../[code]/(private)/welcome/page.client.tsx  |  19 --
 .../door/[code]/(private)/welcome/page.tsx    |  23 +-
 .../door/[code]/(public)/(about)/page.tsx     |   6 +-
 .../[code]/(public)/@header/AddedByCount.tsx  |   2 +-
 .../[code]/(public)/@header/CircleCount.tsx   |   2 +-
 .../door/[code]/(public)/@header/default.tsx  |   8 +-
 .../(public)/@navbar/_client/AddContact.tsx   |  22 +-
 .../door/[code]/(public)/@navbar/default.tsx  |   2 +-
 .../_client/Infinite_Contacts_List.tsx        |   2 +-
 .../door/[code]/(public)/contacts/page.tsx    |   2 +-
 .../(public)/following/_client/List.tsx       |   2 +-
 .../door/[code]/(public)/following/page.tsx   |   2 +-
 .../door/[code]/(public)/history/page.tsx     |   2 +-
 .../[code]/(public)/opportunities/page.tsx    |   2 +-
 .../door/[code]/(public)/proposals/layout.tsx |   8 +
 .../door/[code]/(public)/proposals/page.tsx   |  11 +-
 .../(main)/door/[code]/@navbar/default.tsx    |   6 +-
 .../app/(main)/door/[code]/report/action.ts   |   2 +-
 .../(main)/exchanges/[exchange_id]/Card.tsx   |   4 +-
 .../(main)/exchanges/[exchange_id]/layout.tsx |   5 +-
 .../(main)/exchanges/[exchange_id]/page.tsx   |   4 +-
 apps/www/app/(main)/exchanges/layout.tsx      |  11 +-
 apps/www/app/(main)/exchanges/page.tsx        |  15 +-
 apps/www/app/(main)/forum/_client/List.tsx    |   2 +-
 apps/www/app/(main)/forum/layout.tsx          |  12 +-
 apps/www/app/(main)/layout.tsx                |   4 +-
 .../opportunities/[slug]/@see_also/page.tsx   |   7 +-
 .../(main)/opportunities/[slug]/delete.tsx    |   6 +-
 .../(main)/opportunities/[slug]/layout.tsx    |   8 +-
 .../app/(main)/opportunities/_client/List.tsx |   4 +-
 apps/www/app/(main)/opportunities/layout.tsx  |  11 +-
 apps/www/app/(main)/opportunities/page.tsx    |   5 +-
 apps/www/components/Share_Button.tsx          |   1 +
 apps/www/components/avatar/index.tsx          |  11 +-
 apps/www/components/button/AddToMyCircles.tsx |  11 +-
 apps/www/components/button/BlockProfile.tsx   |   7 +-
 .../navbar/UserBar.client.tsx}                |   7 +-
 .../navbar/UserBar.tsx}                       |  12 +-
 apps/www/components/navbar/aside_navbar.tsx   |   9 +-
 .../BlockedProfile_Placeholder.tsx            |   2 +-
 apps/www/components/shell/RootProviders.tsx   |   4 +-
 apps/www/widgets/exchanges/card/actions.tsx   |   4 +-
 apps/www/widgets/exchanges/card/bookmark.tsx  |   8 +-
 apps/www/widgets/exchanges/card/index.tsx     |   8 +-
 apps/www/widgets/exchanges/card/share.tsx     |   2 +-
 apps/www/widgets/exchanges/list/List.tsx      |   6 +-
 .../widgets/inbox/BlockedProfileWarning.tsx   |   2 +-
 apps/www/widgets/opportunities/card/index.tsx |   6 +-
 apps/www/widgets/opportunities/list/index.tsx |  18 +-
 .../database/seeding/studient/douglas.ts      |   2 +
 .../database/seeding/studient/joedart.ts      |   2 +
 .../infra/database/seeding/studient/johan.ts  |   4 +
 packages/@1/infra/database/testing/index.ts   |   1 +
 packages/@1/infra/trpc/src/index.ts           |   2 +
 packages/@1/modules/auth/api/src/index.ts     |   4 +-
 .../@1/modules/auth/api/src/verify/index.ts   |  16 +-
 .../auth/api/src/verify/verify.e2e.test.ts    |   2 +-
 .../@1/modules/auth/api/src/verify/verify.ts  |  17 ++
 packages/@1/modules/bookmark/api/package.json |   1 +
 .../bookmark/api/src/check/check.e2e.test.ts  |  66 ++++++
 .../modules/bookmark/api/src/check/check.ts   |  32 +++
 .../modules/bookmark/api/src/check/index.ts   |   3 +
 packages/@1/modules/bookmark/api/src/index.ts |  48 +---
 .../@1/modules/bookmark/api/src/procedure.ts  |  11 +
 .../@1/modules/bookmark/api/tsconfig.json     |   2 +-
 .../__snapshots__/delete.e2e.test.ts.snap     |  39 ++++
 .../api/src/me/delete/delete.e2e.test.ts      |  42 ++++
 .../exchange/api/src/me/delete/delete.ts      |  17 ++
 .../exchange/api/src/me/delete/index.ts       |   3 +
 .../exchange/api/src/me/find.e2e.test.ts      |   4 +-
 .../@1/modules/exchange/api/src/me/index.ts   |  32 +--
 .../exchange/api/src/public/by_id.e2e.test.ts |   8 +-
 .../exchange/api/src/public/find.e2e.test.ts  |  24 +-
 packages/@1/modules/forum/api/src/answers.ts  |  76 ++-----
 .../__snapshots__/create.e2e.test.ts.snap     |  13 ++
 .../api/src/answers/create/create.e2e.test.ts |  66 ++++++
 .../forum/api/src/answers/create/create.ts    |  54 +++++
 .../forum/api/src/answers/create/index.ts     |   3 +
 .../__snapshots__/delete.e2e.test.ts.snap     |  12 +
 .../api/src/answers/delete/delete.e2e.test.ts |  70 ++++++
 .../forum/api/src/answers/delete/delete.ts    |  27 +++
 .../forum/api/src/answers/delete/index.ts     |   3 +
 .../forum/api/src/answers/procedure.ts        |  10 +
 packages/@1/modules/forum/api/src/question.ts |  40 +---
 .../__snapshots__/create.e2e.test.ts.snap     |  13 ++
 .../src/question/create/create.e2e.test.ts    |  54 +++++
 .../forum/api/src/question/create/create.ts   |  23 ++
 .../forum/api/src/question/create/index.ts    |   3 +
 .../__snapshots__/delete.e2e.test.ts.snap     |  13 ++
 .../src/question/delete/delete.e2e.test.ts    |  60 +++++
 .../forum/api/src/question/delete/delete.ts   |  16 ++
 .../forum/api/src/question/delete/index.ts    |   3 +
 .../find/__snapshots__/find.e2e.test.ts.snap  | 209 ++++++++++++++++++
 .../{index.e2e.test.ts => find.e2e.test.ts}   | 118 ++++------
 .../forum/api/src/question/find/find.ts       | 142 ++++++++++++
 .../forum/api/src/question/find/index.ts      | 135 +----------
 packages/@1/modules/forum/domain/src/index.ts |   9 +-
 .../@1/modules/opportunity/ui/src/Card.tsx    |   1 +
 .../__snapshots__/find_by_id.e2e.test.ts.snap |  17 ++
 .../api/src/find_by_id/find_by_id.e2e.test.ts |  73 ++++++
 .../profile/api/src/find_by_id/find_by_id.ts  |  29 +++
 .../profile/api/src/find_by_id/index.ts       |   3 +
 packages/@1/modules/profile/api/src/index.ts  |  63 +-----
 packages/@1/modules/profile/api/src/legacy.ts |  63 ++++++
 packages/@1/modules/trpc/src/index.ts         |   1 +
 packages/@1/ui/react/src/avatar/atom.ts       |  19 ++
 packages/@1/ui/react/src/avatar/index.tsx     |   3 +
 pnpm-lock.yaml                                |   3 +
 136 files changed, 1750 insertions(+), 634 deletions(-)
 create mode 100644 apps/e2e/features/exchanges/create_exchange.feature
 create mode 100644 apps/e2e/features/exchanges/studient_filters.feature
 create mode 100644 apps/e2e/features/notification/page.feature
 create mode 100644 apps/e2e/features/partner/welcome.feature
 create mode 100644 apps/e2e/features/studient/welcome.feature
 create mode 100644 apps/e2e/features/studient_exchanges/inbox.feature
 create mode 100644 apps/www/app/(main)/door/[code]/(private)/notifications/layout.tsx
 delete mode 100644 apps/www/app/(main)/door/[code]/(private)/welcome/page.client.tsx
 create mode 100644 apps/www/app/(main)/door/[code]/(public)/proposals/layout.tsx
 rename apps/www/{app/(main)/navbar.client.tsx => components/navbar/UserBar.client.tsx} (94%)
 rename apps/www/{app/(main)/navbar.tsx => components/navbar/UserBar.tsx} (93%)
 create mode 100644 packages/@1/modules/auth/api/src/verify/verify.ts
 create mode 100644 packages/@1/modules/bookmark/api/src/check/check.e2e.test.ts
 create mode 100644 packages/@1/modules/bookmark/api/src/check/check.ts
 create mode 100644 packages/@1/modules/bookmark/api/src/check/index.ts
 create mode 100644 packages/@1/modules/bookmark/api/src/procedure.ts
 create mode 100644 packages/@1/modules/exchange/api/src/me/delete/__snapshots__/delete.e2e.test.ts.snap
 create mode 100644 packages/@1/modules/exchange/api/src/me/delete/delete.e2e.test.ts
 create mode 100644 packages/@1/modules/exchange/api/src/me/delete/delete.ts
 create mode 100644 packages/@1/modules/exchange/api/src/me/delete/index.ts
 create mode 100644 packages/@1/modules/forum/api/src/answers/create/__snapshots__/create.e2e.test.ts.snap
 create mode 100644 packages/@1/modules/forum/api/src/answers/create/create.e2e.test.ts
 create mode 100644 packages/@1/modules/forum/api/src/answers/create/create.ts
 create mode 100644 packages/@1/modules/forum/api/src/answers/create/index.ts
 create mode 100644 packages/@1/modules/forum/api/src/answers/delete/__snapshots__/delete.e2e.test.ts.snap
 create mode 100644 packages/@1/modules/forum/api/src/answers/delete/delete.e2e.test.ts
 create mode 100644 packages/@1/modules/forum/api/src/answers/delete/delete.ts
 create mode 100644 packages/@1/modules/forum/api/src/answers/delete/index.ts
 create mode 100644 packages/@1/modules/forum/api/src/answers/procedure.ts
 create mode 100644 packages/@1/modules/forum/api/src/question/create/__snapshots__/create.e2e.test.ts.snap
 create mode 100644 packages/@1/modules/forum/api/src/question/create/create.e2e.test.ts
 create mode 100644 packages/@1/modules/forum/api/src/question/create/create.ts
 create mode 100644 packages/@1/modules/forum/api/src/question/create/index.ts
 create mode 100644 packages/@1/modules/forum/api/src/question/delete/__snapshots__/delete.e2e.test.ts.snap
 create mode 100644 packages/@1/modules/forum/api/src/question/delete/delete.e2e.test.ts
 create mode 100644 packages/@1/modules/forum/api/src/question/delete/delete.ts
 create mode 100644 packages/@1/modules/forum/api/src/question/delete/index.ts
 create mode 100644 packages/@1/modules/forum/api/src/question/find/__snapshots__/find.e2e.test.ts.snap
 rename packages/@1/modules/forum/api/src/question/find/{index.e2e.test.ts => find.e2e.test.ts} (57%)
 create mode 100644 packages/@1/modules/forum/api/src/question/find/find.ts
 create mode 100644 packages/@1/modules/profile/api/src/find_by_id/__snapshots__/find_by_id.e2e.test.ts.snap
 create mode 100644 packages/@1/modules/profile/api/src/find_by_id/find_by_id.e2e.test.ts
 create mode 100644 packages/@1/modules/profile/api/src/find_by_id/find_by_id.ts
 create mode 100644 packages/@1/modules/profile/api/src/find_by_id/index.ts
 create mode 100644 packages/@1/modules/profile/api/src/legacy.ts

diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index 9e0c4f081..47cf25f48 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -86,6 +86,7 @@ jobs:
           - forum
           - legal
           - moderation
+          - notification
           - opportunity
           - partner
           - status
diff --git a/apps/e2e/cypress/support/step_definitions/general.ts b/apps/e2e/cypress/support/step_definitions/general.ts
index a958dc64c..e96559e30 100644
--- a/apps/e2e/cypress/support/step_definitions/general.ts
+++ b/apps/e2e/cypress/support/step_definitions/general.ts
@@ -18,6 +18,10 @@ Then("je vois {string}", function (text: string) {
   cy.contains(text);
 });
 
+Then("je ne vois pas {string}", function (text: string) {
+  cy.contains(text).should("not.exist");
+});
+
 Then("je vois la légende {string}", function (text: string) {
   cy.get(`[aria-label*="${text}"]`);
 });
diff --git a/apps/e2e/features/exchanges/create_exchange.feature b/apps/e2e/features/exchanges/create_exchange.feature
new file mode 100644
index 000000000..6aa942d80
--- /dev/null
+++ b/apps/e2e/features/exchanges/create_exchange.feature
@@ -0,0 +1,46 @@
+#language: fr
+Fonctionnalité: Posez une question
+
+  Scénario: Les visiteurs ne peuvent pas créer un échange
+    Soit une base de données nourrie au grain
+    * je navigue sur la page
+    Quand je clique sur "Échanges"
+    * je vois dans le titre "Exchange :: Serkels"
+
+    Alors je ne vois pas "Créer un échange"
+
+  Scénario: Douglas crée l'échange "The Creator"
+    Soit une base de données nourrie au grain
+    * je navigue sur la page
+    * je me connecte en tant que "douglas@yopmail.com"
+    * je clique sur "Échanges"
+    * je vois dans le titre "Exchange :: Serkels"
+    Quand je clique sur "Créer un nouvel échange"
+    * je vois dans le titre "New :: Exchanges :: Serkels"
+
+    * je clique sur "Je propose"
+    * je clique sur "Sur place"
+
+    * je clique sur "Ville"
+    * je tape "Nice"
+
+    * je clique sur "Dans quelle categorie ?"
+    * je choisis l'option "Autres"
+
+    * je clique sur "Titre"
+    * je tape "The Creator"
+
+    * je clique sur "Description"
+    * je tape "*The Creator* is a good film and you should watch it ;)"
+
+    * je clique sur "Sans échange"
+
+    Quand je clique sur "Publier"
+    Alors je vois "The Creator"
+    * je vois "The Creator is a good film"
+    * je vois "Proposition"
+    * je vois "Nice"
+    * je vois "Autres"
+    * je vois "Sans échange"
+    * je vois "Date limite : flexible"
+    * je vois "Voir mes échanges"
diff --git a/apps/e2e/features/exchanges/studient_filters.feature b/apps/e2e/features/exchanges/studient_filters.feature
new file mode 100644
index 000000000..6b6372a67
--- /dev/null
+++ b/apps/e2e/features/exchanges/studient_filters.feature
@@ -0,0 +1,12 @@
+#language: fr
+Fonctionnalité: Posez une question
+
+  Scénario: Poser une question sur le forum
+    Soit une base de données nourrie au grain
+    * je navigue sur la page
+    * je me connecte en tant que "douglas@yopmail.com"
+    * je clique sur "Échanges"
+    * je vois dans le titre "Exchange :: Serkels"
+
+    Quand je clique sur "Mes cercles"
+    Alors je vois "P'tit pause café avec l'ami Jackie"
diff --git a/apps/e2e/features/notification/page.feature b/apps/e2e/features/notification/page.feature
new file mode 100644
index 000000000..c9f277abc
--- /dev/null
+++ b/apps/e2e/features/notification/page.feature
@@ -0,0 +1,10 @@
+#language: fr
+Fonctionnalité: Page de notifications
+  Scénario: Voir la page de notifications
+    Soit une base de données nourrie au grain
+    Etant donné que je navigue sur la page
+    * je me connecte en tant que "douglas@yopmail.com"
+    Quand je visite la page "/@~/notifications"
+    Alors je vois dans le titre "Notifications :: Serkels"
+    * je vois "Notifications"
+    * je vois "vous a ajouté dans son cercle."
diff --git a/apps/e2e/features/partner/welcome.feature b/apps/e2e/features/partner/welcome.feature
new file mode 100644
index 000000000..faae8a80d
--- /dev/null
+++ b/apps/e2e/features/partner/welcome.feature
@@ -0,0 +1,12 @@
+#language: fr
+Fonctionnalité: Consulter les échanges proposés d'un étudiant
+  Contexte:
+    Soit une base de données nourrie au grain
+
+  Scénario: La biographie de douglas@yopmail.com
+    Etant donné que je navigue sur la page
+    * je me connecte en tant que "onedoesuniversity@yopmail.com"
+    * je visite la page "/@~/welcome"
+    Alors je vois dans le titre "Welcome :: Serkels"
+    * je vois "Welcome"
+    * je vois "One Does University"
diff --git a/apps/e2e/features/studient/welcome.feature b/apps/e2e/features/studient/welcome.feature
new file mode 100644
index 000000000..d6e1a2db8
--- /dev/null
+++ b/apps/e2e/features/studient/welcome.feature
@@ -0,0 +1,12 @@
+#language: fr
+Fonctionnalité: Consulter les échanges proposés d'un étudiant
+  Contexte:
+    Soit une base de données nourrie au grain
+
+  Scénario: La biographie de douglas@yopmail.com
+    Etant donné que je navigue sur la page
+    * je me connecte en tant que "douglas@yopmail.com"
+    * je visite la page "/@~/welcome"
+    Alors je vois dans le titre "Welcome :: Serkels"
+    * je vois "Welcome"
+    * je vois "Douglas"
diff --git a/apps/e2e/features/studient_exchanges/inbox.feature b/apps/e2e/features/studient_exchanges/inbox.feature
new file mode 100644
index 000000000..9a08f361a
--- /dev/null
+++ b/apps/e2e/features/studient_exchanges/inbox.feature
@@ -0,0 +1,24 @@
+#language: fr
+Fonctionnalité: Envoyer un message a Jackie Smith
+
+  Contexte:
+    Soit une base de données nourrie au grain
+
+  Scénario: Douglas envoie un message à Jackie Smith
+    Etant donné que je navigue sur la page
+    * je me connecte en tant que "douglas@yopmail.com"
+    * je visite la page "/@~"
+    * je vois dans le titre "About :: Serkels"
+    * je clique sur "Messages privés"
+    * je vois dans le titre "Inbox :: Serkels"
+
+    * je clique sur "Écrire"
+    * je vois dans le titre "Write to :: Inbox :: Serkels"
+
+    Quand je clique sur "Jackie Smith"
+
+    Alors je vois dans le titre "Jackie Smith :: Inbox :: Serkels"
+    * je tape "Hey Jackie, tu connais Hiatus Kaiyote ?"
+    * je clique sur la légende "Send"
+    * je vois "Hey Jackie, tu connais Hiatus Kaiyote ?"
+    * je vois dans le titre "Jackie Smith :: Inbox :: Serkels"
diff --git a/apps/www/app/(auth)/signup/student/page.tsx b/apps/www/app/(auth)/signup/student/page.tsx
index dd43dbaa5..5bbafed62 100644
--- a/apps/www/app/(auth)/signup/student/page.tsx
+++ b/apps/www/app/(auth)/signup/student/page.tsx
@@ -1,5 +1,6 @@
 //
 
+import { TrpcRootProvider } from ":trpc/root";
 import { TRPC_SSR } from ":trpc/server";
 import Form from ":widgets/auth/SignUpForm";
 import { auth } from "@1.modules/auth.next";
@@ -37,7 +38,9 @@ async function Page() {
 
   return (
     <main className={base()}>
-      <Form categories={await TRPC_SSR.category.exchange.fetch()} />
+      <TrpcRootProvider>
+        <Form categories={await TRPC_SSR.category.exchange.fetch()} />
+      </TrpcRootProvider>
     </main>
   );
 }
diff --git a/apps/www/app/(main)/door/[code]/(private)/bookmarks/layout.tsx b/apps/www/app/(main)/door/[code]/(private)/bookmarks/layout.tsx
index 0f9f09c60..3fbb6b123 100644
--- a/apps/www/app/(main)/door/[code]/(private)/bookmarks/layout.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/bookmarks/layout.tsx
@@ -2,6 +2,7 @@
 
 import type { Metadata, ResolvingMetadata } from "next";
 import type { PropsWithChildren } from "react";
+import { TrpcRootProvider } from ":trpc/root";
 
 //
 
@@ -15,6 +16,11 @@ export async function generateMetadata(
 }
 
 //
+
 export default function Layout({ children }: PropsWithChildren) {
-  return <div className="m-16 max-w-3xl">{children}</div>;
+  return (
+    <TrpcRootProvider>
+      <div className="m-16 max-w-3xl">{children}</div>
+    </TrpcRootProvider>
+  );
 }
diff --git a/apps/www/app/(main)/door/[code]/(private)/bookmarks/opportunities/page.tsx b/apps/www/app/(main)/door/[code]/(private)/bookmarks/opportunities/page.tsx
index 82fab0c32..e86b46d65 100644
--- a/apps/www/app/(main)/door/[code]/(private)/bookmarks/opportunities/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/bookmarks/opportunities/page.tsx
@@ -1,7 +1,7 @@
 //
 
-import { TRPC_SSR } from ":trpc/server";
 import { Card } from ":widgets/opportunities/card";
+import { trpc_server } from "@1.infra/trpc/react-query/server";
 import type { Metadata, ResolvingMetadata } from "next";
 
 //
@@ -18,7 +18,7 @@ export async function generateMetadata(
 //
 export default async function Page() {
   const { data: opportunities } =
-    await TRPC_SSR.bookmarks.opportunities.find.fetch();
+    await trpc_server.bookmarks.opportunities.find.fetch();
 
   if (opportunities.length === 0)
     return (
diff --git a/apps/www/app/(main)/door/[code]/(private)/exchanges/[exchange_id]/edit/page.client.tsx b/apps/www/app/(main)/door/[code]/(private)/exchanges/[exchange_id]/edit/page.client.tsx
index 25f9842b6..c16760f48 100644
--- a/apps/www/app/(main)/door/[code]/(private)/exchanges/[exchange_id]/edit/page.client.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/exchanges/[exchange_id]/edit/page.client.tsx
@@ -1,6 +1,7 @@
 "use client";
 
 import { TRPC_React } from ":trpc/client";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import type { Category } from "@1.modules/category.domain";
 import { type Exchange_Flat_Schema } from "@1.modules/exchange.domain";
 import {
@@ -21,8 +22,8 @@ export function Mutate_Exchange_Island({
 }: {
   exchange_id: string;
 }) {
-  const { data: exchange } = TRPC_React.exchanges.by_id.useQuery(exchange_id);
-  const { data: categories } = TRPC_React.category.exchange.useQuery();
+  const { data: exchange } = trpc_client.exchanges.by_id.useQuery(exchange_id);
+  const { data: categories } = trpc_client.category.exchange.useQuery();
   if (!exchange) return null;
   if (!categories) return null;
   return <Mutate_Exchange exchange={exchange} categories={categories} />;
diff --git a/apps/www/app/(main)/door/[code]/(private)/exchanges/[exchange_id]/edit/page.tsx b/apps/www/app/(main)/door/[code]/(private)/exchanges/[exchange_id]/edit/page.tsx
index 2be46764a..18513093a 100644
--- a/apps/www/app/(main)/door/[code]/(private)/exchanges/[exchange_id]/edit/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/exchanges/[exchange_id]/edit/page.tsx
@@ -1,9 +1,10 @@
 //
 
 import type { Params } from ":pipes/exchange_by_id";
-import { TRPC_Hydrate, TRPC_SSR } from ":trpc/server";
+import { TRPC_Hydrate } from ":trpc/server";
 import type { Metadata, ResolvingMetadata } from "next";
 import { Mutate_Exchange_Island } from "./page.client";
+import { trpc_server } from "@1.infra/trpc/react-query/server";
 
 //
 
@@ -23,8 +24,8 @@ export default async function Page(props: { params: Promise<Params> }) {
   const params = await props.params;
   const { exchange_id } = params;
 
-  await TRPC_SSR.exchanges.by_id.prefetch(exchange_id);
-  await TRPC_SSR.category.exchange.prefetch();
+  await trpc_server.exchanges.by_id.prefetch(exchange_id);
+  await trpc_server.category.exchange.prefetch();
 
   return (
     <TRPC_Hydrate>
diff --git a/apps/www/app/(main)/door/[code]/(private)/exchanges/inbox/[exchange_id]/[thread_id]/_client/Conversation_Form.tsx b/apps/www/app/(main)/door/[code]/(private)/exchanges/inbox/[exchange_id]/[thread_id]/_client/Conversation_Form.tsx
index 3d2141e7e..e9652fa50 100644
--- a/apps/www/app/(main)/door/[code]/(private)/exchanges/inbox/[exchange_id]/[thread_id]/_client/Conversation_Form.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/exchanges/inbox/[exchange_id]/[thread_id]/_client/Conversation_Form.tsx
@@ -25,7 +25,7 @@ export default function Conversation_Form({
   const is_active = is_active_exchange(exchange);
   const send_message = TRPC_React.inbox.thread.send.useMutation();
   const utils = TRPC_React.useUtils();
-  const blacklist_item = TRPC_React.profile.me.blacklist.find.useQuery({
+  const blacklist_item = TRPC_React.legacy_profile.me.blacklist.find.useQuery({
     profile_id: recipient_id,
   });
   const form = useForm({
diff --git a/apps/www/app/(main)/door/[code]/(private)/exchanges/layout.tsx b/apps/www/app/(main)/door/[code]/(private)/exchanges/layout.tsx
index f7c3664b5..968296c0c 100644
--- a/apps/www/app/(main)/door/[code]/(private)/exchanges/layout.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/exchanges/layout.tsx
@@ -34,7 +34,7 @@ export default async function Layout(
     return <NotConnected_Placeholder />;
   }
 
-  const profile = await TRPC_SSR.profile.by_id.fetch(profile_id);
+  const profile = await TRPC_SSR.legacy_profile.by_id.fetch(profile_id);
   if (profile.role !== PROFILE_ROLES.Enum.STUDENT) {
     redirect(`/@${params.code}`);
   }
diff --git a/apps/www/app/(main)/door/[code]/(private)/exchanges/mine/page.tsx b/apps/www/app/(main)/door/[code]/(private)/exchanges/mine/page.tsx
index 4fef1a7c5..55ce85e35 100644
--- a/apps/www/app/(main)/door/[code]/(private)/exchanges/mine/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/exchanges/mine/page.tsx
@@ -27,7 +27,7 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
     notFound();
   }
 
-  const profile = await TRPC_SSR.profile.by_id.fetch(profile_id);
+  const profile = await TRPC_SSR.legacy_profile.by_id.fetch(profile_id);
   const exchanges = await TRPC_SSR.exchanges.me.publications.fetch({});
 
   const { base, empty } = main();
diff --git a/apps/www/app/(main)/door/[code]/(private)/inbox/[thread_id]/_client/Conversation_Form.tsx b/apps/www/app/(main)/door/[code]/(private)/inbox/[thread_id]/_client/Conversation_Form.tsx
index 99f7feb29..1499c91c8 100644
--- a/apps/www/app/(main)/door/[code]/(private)/inbox/[thread_id]/_client/Conversation_Form.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/inbox/[thread_id]/_client/Conversation_Form.tsx
@@ -16,7 +16,7 @@ export default function Conversation_Form({
   recipient_id,
 }: Params & { recipient_id: string }) {
   const { mutateAsync } = TRPC_React.inbox.thread.send.useMutation();
-  const blacklist_item = TRPC_React.profile.me.blacklist.find.useQuery({
+  const blacklist_item = TRPC_React.legacy_profile.me.blacklist.find.useQuery({
     profile_id: recipient_id,
   });
   const is_blacklisted = blacklist_item.data?.profile.id === recipient_id;
diff --git a/apps/www/app/(main)/door/[code]/(private)/inbox/[thread_id]/page.tsx b/apps/www/app/(main)/door/[code]/(private)/inbox/[thread_id]/page.tsx
index 50c874958..33f8af7ab 100644
--- a/apps/www/app/(main)/door/[code]/(private)/inbox/[thread_id]/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/inbox/[thread_id]/page.tsx
@@ -89,7 +89,7 @@ export default async function Page(props: { params: Promise<Params> }) {
   await TRPC_SSR.inbox.thread.messages.prefetchInfinite({
     thread_id,
   });
-  await TRPC_SSR.profile.me.blacklist.find.prefetch({
+  await TRPC_SSR.legacy_profile.me.blacklist.find.prefetch({
     profile_id: recipient.id,
   });
 
diff --git a/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/[profile_id]/page.tsx b/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/[profile_id]/page.tsx
index 4b182bc29..f73d8a38b 100644
--- a/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/[profile_id]/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/[profile_id]/page.tsx
@@ -17,7 +17,9 @@ export async function generateMetadata(
   parent: ResolvingMetadata,
 ): Promise<Metadata> {
   const params = await props.params;
-  const [, profile] = await to(TRPC_SSR.profile.by_id.fetch(params.profile_id));
+  const [, profile] = await to(
+    TRPC_SSR.legacy_profile.by_id.fetch(params.profile_id),
+  );
   const { name } = profile ?? { name: "O_0" };
   const title = `${name} :: ${(await parent).title?.absolute}`;
 
@@ -35,7 +37,7 @@ export default async function Page(props: { params: Promise<Params> }) {
   const params = await props.params;
   const inbox = await TRPC_SSR.inbox.by_profile_id.fetch(params);
   if (inbox) return redirect(`/@~/inbox/${inbox.thread.id}`);
-  const profile = await TRPC_SSR.profile.by_id.fetch(params.profile_id);
+  const profile = await TRPC_SSR.legacy_profile.by_id.fetch(params.profile_id);
 
   return (
     <main className="h-full">
diff --git a/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/_client/Infinite_Contacts_List.tsx b/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/_client/Infinite_Contacts_List.tsx
index 635ae63ab..e2197c688 100644
--- a/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/_client/Infinite_Contacts_List.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/_client/Infinite_Contacts_List.tsx
@@ -12,7 +12,7 @@ import { P, match } from "ts-pattern";
 //
 
 export default function Infinite_Contacts_List() {
-  const info = TRPC_React.profile.me.contacts.useInfiniteQuery(
+  const info = TRPC_React.legacy_profile.me.contacts.useInfiniteQuery(
     {},
     { getNextPageParam: ({ next_cursor }) => next_cursor },
   );
diff --git a/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/page.tsx b/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/page.tsx
index 8a55539d0..78142e378 100644
--- a/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/inbox/write_to/page.tsx
@@ -25,7 +25,7 @@ export async function generateMetadata(
 //
 
 export default async function Page() {
-  await TRPC_SSR.profile.me.contacts.prefetchInfinite({});
+  await TRPC_SSR.legacy_profile.me.contacts.prefetchInfinite({});
 
   return (
     <TRPC_Hydrate>
diff --git a/apps/www/app/(main)/door/[code]/(private)/notifications/layout.tsx b/apps/www/app/(main)/door/[code]/(private)/notifications/layout.tsx
new file mode 100644
index 000000000..3aa6292e0
--- /dev/null
+++ b/apps/www/app/(main)/door/[code]/(private)/notifications/layout.tsx
@@ -0,0 +1,10 @@
+//
+
+import { TrpcRootProvider } from ":trpc/root";
+import type { PropsWithChildren } from "react";
+
+//
+
+export default function Layout({ children }: PropsWithChildren) {
+  return <TrpcRootProvider>{children}</TrpcRootProvider>;
+}
diff --git a/apps/www/app/(main)/door/[code]/(private)/notifications/page.tsx b/apps/www/app/(main)/door/[code]/(private)/notifications/page.tsx
index 143c62257..e1db244b4 100644
--- a/apps/www/app/(main)/door/[code]/(private)/notifications/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/notifications/page.tsx
@@ -1,8 +1,9 @@
 //
 
-import { TRPC_Hydrate, TRPC_SSR } from ":trpc/server";
+import { TRPC_Hydrate } from ":trpc/server";
 import type { Metadata, ResolvingMetadata } from "next";
 import { AsyncListInfinite } from "./List";
+import { trpc_server } from "@1.infra/trpc/react-query/server";
 
 //
 
@@ -23,7 +24,7 @@ export async function generateMetadata(
 //
 
 export default async function Page() {
-  await TRPC_SSR.notification.find.prefetchInfinite({});
+  await trpc_server.notification.find.prefetchInfinite({});
   //
   return (
     <TRPC_Hydrate>
diff --git a/apps/www/app/(main)/door/[code]/(private)/opportunities/layout.tsx b/apps/www/app/(main)/door/[code]/(private)/opportunities/layout.tsx
index bb4630719..974132d7d 100644
--- a/apps/www/app/(main)/door/[code]/(private)/opportunities/layout.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/opportunities/layout.tsx
@@ -33,7 +33,7 @@ export default async function Layout(
     return notFound();
   }
 
-  const profile = await TRPC_SSR.profile.by_id.fetch(profile_id);
+  const profile = await TRPC_SSR.legacy_profile.by_id.fetch(profile_id);
   if (profile.role !== PROFILE_ROLES.Enum.PARTNER) {
     redirect(`/@${params.code}`);
   }
diff --git a/apps/www/app/(main)/door/[code]/(private)/parameters/_client/Avatar_Editor.tsx b/apps/www/app/(main)/door/[code]/(private)/parameters/_client/Avatar_Editor.tsx
index 355cc4378..a03a114ab 100644
--- a/apps/www/app/(main)/door/[code]/(private)/parameters/_client/Avatar_Editor.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/parameters/_client/Avatar_Editor.tsx
@@ -24,7 +24,7 @@ export default function Avatar_Editor({ profile }: { profile: Profile }) {
     defaultValues: { profile_id: profile.id, image_file: new File([], "") },
   });
   const update_image_to_gravatar =
-    TRPC_React.profile.me.update_image_to_gravatar.useMutation();
+    TRPC_React.legacy_profile.me.update_image_to_gravatar.useMutation();
   const [preview, set_preview] = useState(profile.image);
   const { update } = useSession();
   const router = useRouter();
diff --git a/apps/www/app/(main)/door/[code]/(private)/parameters/_client/Profile_Editor.tsx b/apps/www/app/(main)/door/[code]/(private)/parameters/_client/Profile_Editor.tsx
index f72b70632..cd578ddcc 100644
--- a/apps/www/app/(main)/door/[code]/(private)/parameters/_client/Profile_Editor.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/parameters/_client/Profile_Editor.tsx
@@ -24,10 +24,10 @@ export default function Profile_Editor({
   const utils = TRPC_React.useUtils();
   const router = useRouter();
 
-  const query_profile = TRPC_React.profile.by_id.useQuery(profile_id, {
+  const query_profile = TRPC_React.legacy_profile.by_id.useQuery(profile_id, {
     select: ({ bio, name }) => ({ bio, name }),
   });
-  const update_profile = TRPC_React.profile.me.update.useMutation();
+  const update_profile = TRPC_React.legacy_profile.me.update.useMutation();
 
   const profile = query_profile.data ?? initial;
 
@@ -38,7 +38,7 @@ export default function Profile_Editor({
         const data = await update_profile.mutateAsync({
           ...values,
         });
-        await utils.profile.by_id.invalidate(profile_id);
+        await utils.legacy_profile.by_id.invalidate(profile_id);
         await update();
         formik.resetForm({ values: { ...data, email: values.email } });
         router.refresh();
diff --git a/apps/www/app/(main)/door/[code]/(private)/parameters/page.tsx b/apps/www/app/(main)/door/[code]/(private)/parameters/page.tsx
index ce3bcb74d..d982c3e60 100644
--- a/apps/www/app/(main)/door/[code]/(private)/parameters/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/parameters/page.tsx
@@ -1,7 +1,7 @@
 //
 
 import { code_to_profile_id, type CodeParms } from ":pipes/code";
-import { TRPC_SSR } from ":trpc/server";
+import { trpc_server } from "@1.infra/trpc/react-query/server";
 import { AuthError } from "@1.modules/core/errors";
 import { PROFILE_ROLES, type Profile } from "@1.modules/profile.domain";
 import type { Metadata, ResolvingMetadata } from "next";
@@ -38,7 +38,7 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
       throw new AuthError("No profile id");
     }
 
-    const profile = await TRPC_SSR.profile.by_id.fetch(profile_id);
+    const profile = await trpc_server.legacy_profile.by_id.fetch(profile_id);
 
     return (
       <main className="mx-auto my-10 max-w-3xl px-4">
@@ -67,13 +67,17 @@ async function Role_Editor({
   return match(role)
     .with(PROFILE_ROLES.Enum.STUDENT, async () => {
       const student =
-        await TRPC_SSR.profile.student.by_profile_id.fetch(profile_id);
-      const categories = await TRPC_SSR.category.exchange.fetch();
+        await trpc_server.legacy_profile.student.by_profile_id.fetch(
+          profile_id,
+        );
+      const categories = await trpc_server.category.exchange.fetch();
       return <Student_Editor categories={categories} student={student} />;
     })
     .with(PROFILE_ROLES.Enum.PARTNER, async () => {
       const partner =
-        await TRPC_SSR.profile.partner.by_profile_id.fetch(profile_id);
+        await trpc_server.legacy_profile.partner.by_profile_id.fetch(
+          profile_id,
+        );
       return <Partner_Editor partner={partner} />;
     })
     .otherwise(() => null);
diff --git a/apps/www/app/(main)/door/[code]/(private)/parameters/upload.tsx b/apps/www/app/(main)/door/[code]/(private)/parameters/upload.tsx
index 232f3445b..50530b70a 100644
--- a/apps/www/app/(main)/door/[code]/(private)/parameters/upload.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/parameters/upload.tsx
@@ -21,8 +21,11 @@ export async function uploadImage(formData: FormData) {
     token,
   });
 
-  const profile = await proxyClient.profile.by_id.query(profile_id);
-  await proxyClient.profile.me.update.mutate({ ...profile, image: blob.url });
+  const profile = await proxyClient.legacy_profile.by_id.query(profile_id);
+  await proxyClient.legacy_profile.me.update.mutate({
+    ...profile,
+    image: blob.url,
+  });
 
   revalidatePath(
     `https://xliajqivstyuw7e1.public.blob.vercel-storage.com/${pathname}`,
diff --git a/apps/www/app/(main)/door/[code]/(private)/welcome/page.client.tsx b/apps/www/app/(main)/door/[code]/(private)/welcome/page.client.tsx
deleted file mode 100644
index 61ad72ec2..000000000
--- a/apps/www/app/(main)/door/[code]/(private)/welcome/page.client.tsx
+++ /dev/null
@@ -1,19 +0,0 @@
-"use client";
-
-import { useSession } from "@1.modules/auth.next/react";
-import { Avatar } from "@1.ui/react/avatar";
-
-//
-
-export default function Welcome_Flow() {
-  const { data: session } = useSession({ required: true });
-
-  return (
-    <>
-      <div className="">
-        <Avatar image={session?.profile?.image} className="mt-5 h-32" />
-        <p className="mt-5 text-xl font-extrabold">{session?.profile?.name}</p>
-      </div>
-    </>
-  );
-}
diff --git a/apps/www/app/(main)/door/[code]/(private)/welcome/page.tsx b/apps/www/app/(main)/door/[code]/(private)/welcome/page.tsx
index 7c8352473..405103135 100644
--- a/apps/www/app/(main)/door/[code]/(private)/welcome/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/welcome/page.tsx
@@ -1,16 +1,9 @@
 //
 
-import { Spinner } from "@1.ui/react/spinner";
 import type { Metadata, ResolvingMetadata } from "next";
-import dynamic from "next/dynamic";
-
-//
-
-const Welcome_Flow = dynamic(() => import("./page.client"), {
-  loading() {
-    return <Spinner />;
-  },
-});
+import { Avatar } from "@1.ui/react/avatar";
+import { auth } from "@1.modules/auth.next";
+import { ProfileAvatarMedia } from ":components/avatar";
 
 //
 
@@ -31,6 +24,8 @@ export async function generateMetadata(
 //
 
 export default async function Page() {
+  const session = await auth();
+  if (!session) return null;
   return (
     <main className="flex h-full flex-col items-center justify-center">
       <h1
@@ -45,7 +40,13 @@ export default async function Page() {
         Welcome
       </h1>
       <div className="mx-auto mt-5 text-center">
-        <Welcome_Flow />
+        <ProfileAvatarMedia
+          profile={session.profile}
+          variant={{
+            tv$direction: "column",
+            tv$size: "2xlarge",
+          }}
+        />
       </div>
     </main>
   );
diff --git a/apps/www/app/(main)/door/[code]/(public)/(about)/page.tsx b/apps/www/app/(main)/door/[code]/(public)/(about)/page.tsx
index 60704f8bc..9fa76acf9 100644
--- a/apps/www/app/(main)/door/[code]/(public)/(about)/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/(about)/page.tsx
@@ -30,7 +30,7 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
       throw new AuthError("No profile id");
     }
 
-    const profile = await TRPC_SSR.profile.by_id.fetch(profile_id);
+    const profile = await TRPC_SSR.legacy_profile.by_id.fetch(profile_id);
 
     return (
       <main className="prose max-w-full lg:prose-xl">
@@ -60,7 +60,7 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
 
 async function StudentMeta({ profile_id }: { profile_id: string }) {
   const student =
-    await TRPC_SSR.profile.student.by_profile_id.fetch(profile_id);
+    await TRPC_SSR.legacy_profile.student.by_profile_id.fetch(profile_id);
 
   return (
     <ul>
@@ -83,7 +83,7 @@ async function StudentMeta({ profile_id }: { profile_id: string }) {
 
 async function PartnerMeta({ profile_id }: { profile_id: string }) {
   const partner =
-    await TRPC_SSR.profile.partner.by_profile_id.fetch(profile_id);
+    await TRPC_SSR.legacy_profile.partner.by_profile_id.fetch(profile_id);
 
   return (
     <ul>
diff --git a/apps/www/app/(main)/door/[code]/(public)/@header/AddedByCount.tsx b/apps/www/app/(main)/door/[code]/(public)/@header/AddedByCount.tsx
index f4d466129..b747fd4b0 100644
--- a/apps/www/app/(main)/door/[code]/(public)/@header/AddedByCount.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/@header/AddedByCount.tsx
@@ -5,7 +5,7 @@ import { TRPC_React } from ":trpc/client";
 //
 
 export function AddedByCount({ profile_id }: { profile_id: string }) {
-  const profile = TRPC_React.profile.by_id.useQuery(profile_id);
+  const profile = TRPC_React.legacy_profile.by_id.useQuery(profile_id);
   const count = profile.data?.in_contact_with.length ?? 0;
   return (
     <div className="flex flex-col items-center">
diff --git a/apps/www/app/(main)/door/[code]/(public)/@header/CircleCount.tsx b/apps/www/app/(main)/door/[code]/(public)/@header/CircleCount.tsx
index d40b258dd..48d436311 100644
--- a/apps/www/app/(main)/door/[code]/(public)/@header/CircleCount.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/@header/CircleCount.tsx
@@ -5,7 +5,7 @@ import { TRPC_React } from ":trpc/client";
 //
 
 export function CircleCount({ profile_id }: { profile_id: string }) {
-  const profile = TRPC_React.profile.by_id.useQuery(profile_id);
+  const profile = TRPC_React.legacy_profile.by_id.useQuery(profile_id);
   const count = profile.data?.contacts.length ?? 0;
   return (
     <div aria-label="Mes cercles" className="flex flex-col items-center">
diff --git a/apps/www/app/(main)/door/[code]/(public)/@header/default.tsx b/apps/www/app/(main)/door/[code]/(public)/@header/default.tsx
index 56c8dd0f0..25f57e04b 100644
--- a/apps/www/app/(main)/door/[code]/(public)/@header/default.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/@header/default.tsx
@@ -27,13 +27,13 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
     throw new AuthError("Unkwon code", { cause: code_to_profile_id_err });
   }
   const [profile_err, profile] = await to(
-    TRPC_SSR.profile.by_id.fetch(profile_id),
+    TRPC_SSR.legacy_profile.by_id.fetch(profile_id),
   );
   if (!profile) {
     throw new AuthError("No profile", { cause: profile_err });
   }
 
-  await TRPC_SSR.profile.by_id.prefetch(profile_id);
+  await TRPC_SSR.legacy_profile.by_id.prefetch(profile_id);
 
   return (
     <TRPC_Hydrate>
@@ -67,13 +67,13 @@ async function MaybeProfileLink(
 function ProfileAvatar({ profile }: { profile: Profile }) {
   return match(profile.role)
     .with(PROFILE_ROLES.Enum.STUDENT, async () => {
-      const student = await TRPC_SSR.profile.student.by_profile_id.fetch(
+      const student = await TRPC_SSR.legacy_profile.student.by_profile_id.fetch(
         profile.id,
       );
       return <StudentAvatarMedia tv$size="medium" student={student} />;
     })
     .with(PROFILE_ROLES.Enum.PARTNER, async () => {
-      const partner = await TRPC_SSR.profile.partner.by_profile_id.fetch(
+      const partner = await TRPC_SSR.legacy_profile.partner.by_profile_id.fetch(
         profile.id,
       );
       return <PartnerAvatarMedia tv$size="medium" partner={partner} />;
diff --git a/apps/www/app/(main)/door/[code]/(public)/@navbar/_client/AddContact.tsx b/apps/www/app/(main)/door/[code]/(public)/@navbar/_client/AddContact.tsx
index 766af0971..6a4ca9f8e 100644
--- a/apps/www/app/(main)/door/[code]/(public)/@navbar/_client/AddContact.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/@navbar/_client/AddContact.tsx
@@ -20,23 +20,27 @@ export default function AddContact({
 }) {
   const { data: session } = useSession();
   const find_contact =
-    TRPC_React.profile.me.contact.find_by_profile_id.useQuery(profile_id, {
-      staleTime: Infinity,
-    });
-  const toggle_contact = TRPC_React.profile.me.contact.toggle.useMutation();
+    TRPC_React.legacy_profile.me.contact.find_by_profile_id.useQuery(
+      profile_id,
+      {
+        staleTime: Infinity,
+      },
+    );
+  const toggle_contact =
+    TRPC_React.legacy_profile.me.contact.toggle.useMutation();
   const utils = TRPC_React.useUtils();
   const { is_blocked } = useBlockProfile(profile_id);
 
   const toggle_add_contact = useCallback(async () => {
     await toggle_contact.mutateAsync(profile_id);
     await Promise.all([
-      utils.profile.by_id.invalidate(profile_id),
-      utils.profile.by_id.invalidate(session?.profile.id),
+      utils.legacy_profile.by_id.invalidate(profile_id),
+      utils.legacy_profile.by_id.invalidate(session?.profile.id),
 
-      utils.profile.me.added_by.find.invalidate(),
-      utils.profile.me.contact.find_by_profile_id.invalidate(profile_id),
+      utils.legacy_profile.me.added_by.find.invalidate(),
+      utils.legacy_profile.me.contact.find_by_profile_id.invalidate(profile_id),
 
-      utils.profile.me.contacts.invalidate({}),
+      utils.legacy_profile.me.contacts.invalidate({}),
     ]);
     toggle_contact.reset();
   }, [toggle_contact, utils, profile_id]);
diff --git a/apps/www/app/(main)/door/[code]/(public)/@navbar/default.tsx b/apps/www/app/(main)/door/[code]/(public)/@navbar/default.tsx
index a150d5fc2..2bfc16a2f 100644
--- a/apps/www/app/(main)/door/[code]/(public)/@navbar/default.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/@navbar/default.tsx
@@ -19,7 +19,7 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
     }
     const param = { ...params, profile_id };
 
-    const profile = await TRPC_SSR.profile.by_id.fetch(profile_id);
+    const profile = await TRPC_SSR.legacy_profile.by_id.fetch(profile_id);
 
     return match(profile.role)
       .with(PROFILE_ROLES.Enum.PARTNER, () => <Partner_Page params={param} />)
diff --git a/apps/www/app/(main)/door/[code]/(public)/contacts/_client/Infinite_Contacts_List.tsx b/apps/www/app/(main)/door/[code]/(public)/contacts/_client/Infinite_Contacts_List.tsx
index 0ab9b5327..79857698a 100644
--- a/apps/www/app/(main)/door/[code]/(public)/contacts/_client/Infinite_Contacts_List.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/contacts/_client/Infinite_Contacts_List.tsx
@@ -13,7 +13,7 @@ import Loading_Placeholder from "../loading";
 //
 
 function useQueryContacts() {
-  return TRPC_React.profile.me.contacts.useInfiniteQuery(
+  return TRPC_React.legacy_profile.me.contacts.useInfiniteQuery(
     {},
     { getNextPageParam: ({ next_cursor }) => next_cursor },
   );
diff --git a/apps/www/app/(main)/door/[code]/(public)/contacts/page.tsx b/apps/www/app/(main)/door/[code]/(public)/contacts/page.tsx
index 506a7ff15..56176173c 100644
--- a/apps/www/app/(main)/door/[code]/(public)/contacts/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/contacts/page.tsx
@@ -31,7 +31,7 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
     redirect(`/@${params.code}`);
   }
 
-  await TRPC_SSR.profile.me.contacts.prefetchInfinite({});
+  await TRPC_SSR.legacy_profile.me.contacts.prefetchInfinite({});
 
   return (
     <main className={column_screen({ className: "bg-white text-black" })}>
diff --git a/apps/www/app/(main)/door/[code]/(public)/following/_client/List.tsx b/apps/www/app/(main)/door/[code]/(public)/following/_client/List.tsx
index ef49a6dec..6d6114ddf 100644
--- a/apps/www/app/(main)/door/[code]/(public)/following/_client/List.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/following/_client/List.tsx
@@ -14,7 +14,7 @@ import { P, match } from "ts-pattern";
 //
 
 function useQueryProfilesFollowingMe() {
-  return TRPC_React.profile.me.added_by.find.useInfiniteQuery(
+  return TRPC_React.legacy_profile.me.added_by.find.useInfiniteQuery(
     {},
     { getNextPageParam: ({ next_cursor }) => next_cursor },
   );
diff --git a/apps/www/app/(main)/door/[code]/(public)/following/page.tsx b/apps/www/app/(main)/door/[code]/(public)/following/page.tsx
index f6465f0fc..0260c806e 100644
--- a/apps/www/app/(main)/door/[code]/(public)/following/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/following/page.tsx
@@ -31,7 +31,7 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
     redirect(`/@${params.code}`);
   }
 
-  await TRPC_SSR.profile.me.added_by.find.prefetchInfinite({});
+  await TRPC_SSR.legacy_profile.me.added_by.find.prefetchInfinite({});
 
   return (
     <main className={column_screen({ className: "bg-white text-black" })}>
diff --git a/apps/www/app/(main)/door/[code]/(public)/history/page.tsx b/apps/www/app/(main)/door/[code]/(public)/history/page.tsx
index 26ffe3ca7..5f2eb21fa 100644
--- a/apps/www/app/(main)/door/[code]/(public)/history/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/history/page.tsx
@@ -28,7 +28,7 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
     notFound();
   }
 
-  const profile = await TRPC_SSR.profile.by_id.fetch(profile_id);
+  const profile = await TRPC_SSR.legacy_profile.by_id.fetch(profile_id);
   if (profile.role !== PROFILE_ROLES.Enum.STUDENT) {
     redirect(`/@${params.code}`);
   }
diff --git a/apps/www/app/(main)/door/[code]/(public)/opportunities/page.tsx b/apps/www/app/(main)/door/[code]/(public)/opportunities/page.tsx
index 75b20296d..0560176a8 100644
--- a/apps/www/app/(main)/door/[code]/(public)/opportunities/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/opportunities/page.tsx
@@ -26,7 +26,7 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
     return notFound();
   }
 
-  const profile = await TRPC_SSR.profile.by_id.fetch(profile_id);
+  const profile = await TRPC_SSR.legacy_profile.by_id.fetch(profile_id);
   if (profile.role !== PROFILE_ROLES.Enum.PARTNER) {
     redirect(`/@${params.code}`);
   }
diff --git a/apps/www/app/(main)/door/[code]/(public)/proposals/layout.tsx b/apps/www/app/(main)/door/[code]/(public)/proposals/layout.tsx
new file mode 100644
index 000000000..c0c75cf46
--- /dev/null
+++ b/apps/www/app/(main)/door/[code]/(public)/proposals/layout.tsx
@@ -0,0 +1,8 @@
+//
+
+import { TrpcRootProvider } from ":trpc/root";
+import type { PropsWithChildren } from "react";
+
+export default function Layout({ children }: PropsWithChildren) {
+  return <TrpcRootProvider>{children}</TrpcRootProvider>;
+}
diff --git a/apps/www/app/(main)/door/[code]/(public)/proposals/page.tsx b/apps/www/app/(main)/door/[code]/(public)/proposals/page.tsx
index d6991e4fe..566c39103 100644
--- a/apps/www/app/(main)/door/[code]/(public)/proposals/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(public)/proposals/page.tsx
@@ -2,9 +2,10 @@
 
 import { NotConnected_Placeholder } from ":components/placeholder/NotConnected_Placeholder";
 import { code_to_profile_id, type CodeParms } from ":pipes/code";
-import { TRPC_Hydrate, TRPC_SSR } from ":trpc/server";
+import { TRPC_Hydrate } from ":trpc/server";
 import { Exchange_Card } from ":widgets/exchanges/card";
-import { getServerSession } from "@1.modules/auth.next";
+import { trpc_server } from "@1.infra/trpc/react-query/server";
+import { auth } from "@1.modules/auth.next";
 import { PROFILE_ROLES } from "@1.modules/profile.domain";
 import type { Metadata, ResolvingMetadata } from "next";
 import { notFound, redirect } from "next/navigation";
@@ -27,16 +28,16 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
     return notFound();
   }
 
-  const profile = await TRPC_SSR.profile.by_id.fetch(profile_id);
+  const profile = await trpc_server.profile.by_id.fetch(profile_id);
   if (profile.role !== PROFILE_ROLES.Enum.STUDENT) {
     redirect(`/@${params.code}`);
   }
 
-  const { data: exchanges } = await TRPC_SSR.exchanges.by_profile.fetch({
+  const { data: exchanges } = await trpc_server.exchanges.by_profile.fetch({
     profile_id,
   });
 
-  const session = await getServerSession();
+  const session = await auth();
 
   if (!session) {
     return <NotConnected_Placeholder />;
diff --git a/apps/www/app/(main)/door/[code]/@navbar/default.tsx b/apps/www/app/(main)/door/[code]/@navbar/default.tsx
index 8226fb393..65f5f38b9 100644
--- a/apps/www/app/(main)/door/[code]/@navbar/default.tsx
+++ b/apps/www/app/(main)/door/[code]/@navbar/default.tsx
@@ -26,16 +26,16 @@ export default async function Page(props: { params: Promise<CodeParms> }) {
     return await match({ is_yours, role })
       .with({ role: PROFILE_ROLES.Enum.STUDENT, is_yours: true }, async () => {
         const student =
-          await TRPC_SSR.profile.student.by_profile_id.fetch(profile_id);
+          await TRPC_SSR.legacy_profile.student.by_profile_id.fetch(profile_id);
         return <Student_NavBar student={student} />;
       })
       .with({ role: PROFILE_ROLES.Enum.PARTNER, is_yours: true }, async () => {
         const partner =
-          await TRPC_SSR.profile.partner.by_profile_id.fetch(profile_id);
+          await TRPC_SSR.legacy_profile.partner.by_profile_id.fetch(profile_id);
         return <Partner_NavBar partner={partner} />;
       })
       .otherwise(() => null);
-  } catch (error) {
+  } catch {
     return notFound();
   }
 }
diff --git a/apps/www/app/(main)/door/[code]/report/action.ts b/apps/www/app/(main)/door/[code]/report/action.ts
index f61c4c6e6..4556ffb0f 100644
--- a/apps/www/app/(main)/door/[code]/report/action.ts
+++ b/apps/www/app/(main)/door/[code]/report/action.ts
@@ -42,7 +42,7 @@ export async function report(
 
   const input = validatedFields.data;
 
-  const [report_error] = await to(trpc_caller.profile.me.report(input));
+  const [report_error] = await to(trpc_caller.legacy_profile.me.report(input));
   if (report_error) {
     return {
       ...state,
diff --git a/apps/www/app/(main)/exchanges/[exchange_id]/Card.tsx b/apps/www/app/(main)/exchanges/[exchange_id]/Card.tsx
index 738ad2d7e..07f82b956 100644
--- a/apps/www/app/(main)/exchanges/[exchange_id]/Card.tsx
+++ b/apps/www/app/(main)/exchanges/[exchange_id]/Card.tsx
@@ -2,8 +2,8 @@
 
 import { Loading_Placeholder } from ":components/placeholder/Loading_Placeholder";
 import type { Params } from ":pipes/exchange_by_id";
-import { TRPC_React } from ":trpc/client";
 import { Exchange_Card } from ":widgets/exchanges/card";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import { useSession } from "@1.modules/auth.next/react";
 import { notFound } from "next/navigation";
 import { match, P } from "ts-pattern";
@@ -13,7 +13,7 @@ import { match, P } from "ts-pattern";
 export function Card({ exchange_id }: Params) {
   const { data: session } = useSession();
   const { data: exchange, status } =
-    TRPC_React.exchanges.by_id.useQuery(exchange_id);
+    trpc_client.exchanges.by_id.useQuery(exchange_id);
 
   return match({ exchange, status })
     .with({ status: "error" }, () => notFound())
diff --git a/apps/www/app/(main)/exchanges/[exchange_id]/layout.tsx b/apps/www/app/(main)/exchanges/[exchange_id]/layout.tsx
index e09061673..d5aaff9fa 100644
--- a/apps/www/app/(main)/exchanges/[exchange_id]/layout.tsx
+++ b/apps/www/app/(main)/exchanges/[exchange_id]/layout.tsx
@@ -1,7 +1,8 @@
 //
 
 import type { Params } from ":pipes/exchange_by_id";
-import { TRPC_Hydrate, TRPC_SSR } from ":trpc/server";
+import { TRPC_Hydrate } from ":trpc/server";
+import { trpc_server } from "@1.infra/trpc/react-query/server";
 import { notFound } from "next/navigation";
 import type { PropsWithChildren } from "react";
 
@@ -16,7 +17,7 @@ export default async function Layout(
 
   const { exchange_id } = params;
   try {
-    await TRPC_SSR.exchanges.by_id.prefetch(exchange_id);
+    await trpc_server.exchanges.by_id.prefetch(exchange_id);
   } catch {
     notFound();
   }
diff --git a/apps/www/app/(main)/exchanges/[exchange_id]/page.tsx b/apps/www/app/(main)/exchanges/[exchange_id]/page.tsx
index 11c65877a..ac6d7fe10 100644
--- a/apps/www/app/(main)/exchanges/[exchange_id]/page.tsx
+++ b/apps/www/app/(main)/exchanges/[exchange_id]/page.tsx
@@ -1,10 +1,10 @@
 //
 
 import type { Params } from ":pipes/exchange_by_id";
-import { TRPC_SSR } from ":trpc/server";
 import to from "await-to-js";
 import type { Metadata, ResolvingMetadata } from "next";
 import { Card } from "./Card";
+import { trpc_server } from "@1.infra/trpc/react-query/server";
 
 //
 
@@ -16,7 +16,7 @@ export async function generateMetadata(
 
   const { exchange_id } = params;
 
-  const [, exchange] = await to(TRPC_SSR.exchanges.by_id.fetch(exchange_id));
+  const [, exchange] = await to(trpc_server.exchanges.by_id.fetch(exchange_id));
 
   const title = exchange?.title ?? "Not Found";
   return {
diff --git a/apps/www/app/(main)/exchanges/layout.tsx b/apps/www/app/(main)/exchanges/layout.tsx
index 20f1affc5..47cf92510 100644
--- a/apps/www/app/(main)/exchanges/layout.tsx
+++ b/apps/www/app/(main)/exchanges/layout.tsx
@@ -1,6 +1,7 @@
 ///
 
 import { AsideFilter } from ":components/shell/AsideFilter";
+import { TrpcRootProvider } from ":trpc/root";
 import { Exchanges_Filter } from ":widgets/exchanges/filter";
 import { SearchForm } from ":widgets/exchanges/list";
 import { Grid } from "@1.ui/react/grid";
@@ -27,10 +28,12 @@ export default async function Layout({
 
         {categories}
       </AsideFilter>
-      <div className="col-span-full md:col-span-6 md:my-10">{children}</div>
-      {/* <aside className="mt-10 hidden xl:col-span-3 xl:block xl:px-10">
-        {see_also}
-      </aside> */}
+      <TrpcRootProvider>
+        <div className="col-span-full md:col-span-6 md:my-10">{children}</div>
+      </TrpcRootProvider>
+      <aside className="mt-10 hidden xl:col-span-3 xl:block xl:px-10">
+        <TrpcRootProvider>{see_also}</TrpcRootProvider>
+      </aside>
     </Grid>
   );
 }
diff --git a/apps/www/app/(main)/exchanges/page.tsx b/apps/www/app/(main)/exchanges/page.tsx
index 25ec083db..a0f932aac 100644
--- a/apps/www/app/(main)/exchanges/page.tsx
+++ b/apps/www/app/(main)/exchanges/page.tsx
@@ -1,5 +1,6 @@
 //
 
+import { TrpcRootProvider } from ":trpc/root";
 import { TRPC_Hydrate } from ":trpc/server";
 import { List } from ":widgets/exchanges/list";
 import { trpc_server } from "@1.infra/trpc/react-query/server";
@@ -50,13 +51,15 @@ export default async function Page({
   });
 
   return (
-    <TRPC_Hydrate>
-      <main>
-        <NewExchangeSection />
+    <TrpcRootProvider>
+      <TRPC_Hydrate>
+        <main>
+          <NewExchangeSection />
 
-        <List key="list" />
-      </main>
-    </TRPC_Hydrate>
+          <List key="list" />
+        </main>
+      </TRPC_Hydrate>
+    </TrpcRootProvider>
   );
 }
 
diff --git a/apps/www/app/(main)/forum/_client/List.tsx b/apps/www/app/(main)/forum/_client/List.tsx
index 69f8c17a5..3fe6fd8da 100644
--- a/apps/www/app/(main)/forum/_client/List.tsx
+++ b/apps/www/app/(main)/forum/_client/List.tsx
@@ -138,7 +138,7 @@ function Delete_Answer_Button() {
   const is_owner = session.data?.profile.id === answer.owner.profile.id;
 
   async function deleteAnswer() {
-    await mutateAsync(answer.id);
+    await mutateAsync({ answers_id: answer.id, question_id: answer.parent_id });
     await utils.forum.question.answers.find.invalidate();
   }
 
diff --git a/apps/www/app/(main)/forum/layout.tsx b/apps/www/app/(main)/forum/layout.tsx
index 1b59091a1..1286e785b 100644
--- a/apps/www/app/(main)/forum/layout.tsx
+++ b/apps/www/app/(main)/forum/layout.tsx
@@ -1,6 +1,7 @@
 //
 
 import { AsideFilter } from ":components/shell/AsideFilter";
+import { TrpcRootProvider } from ":trpc/root";
 import { Grid } from "@1.ui/react/grid";
 import InputSearch from "@1.ui/react/input/InputSearch";
 import dynamic from "next/dynamic";
@@ -33,10 +34,13 @@ export default async function Layout({
 
         {categories}
       </AsideFilter>
-      <div className="col-span-full md:col-span-6 md:my-10">{children}</div>
-      <aside className="mt-10 hidden xl:col-span-3 xl:block xl:px-10">
-        {see_also}
-      </aside>
+
+      <TrpcRootProvider>
+        <div className="col-span-full md:col-span-6 md:my-10">{children}</div>
+        <aside className="mt-10 hidden xl:col-span-3 xl:block xl:px-10">
+          {see_also}
+        </aside>
+      </TrpcRootProvider>
     </Grid>
   );
 }
diff --git a/apps/www/app/(main)/layout.tsx b/apps/www/app/(main)/layout.tsx
index fa5dea27b..0654d0ac3 100644
--- a/apps/www/app/(main)/layout.tsx
+++ b/apps/www/app/(main)/layout.tsx
@@ -5,7 +5,7 @@ import { MobileNavBar } from ":components/shell/MobileNavBar";
 import { TermAgreement } from ":components/terms/TermAgreement";
 import type { PropsWithChildren } from "react";
 import { tv } from "tailwind-variants";
-import Header from "./navbar";
+import UserBar from ":components/navbar/UserBar";
 
 //
 
@@ -14,7 +14,7 @@ export default function Main_Layout({ children }: PropsWithChildren) {
   return (
     <div className={base()}>
       <header className={header()}>
-        <Header />
+        <UserBar />
       </header>
 
       {children}
diff --git a/apps/www/app/(main)/opportunities/[slug]/@see_also/page.tsx b/apps/www/app/(main)/opportunities/[slug]/@see_also/page.tsx
index d5ef30157..cc40b98ea 100644
--- a/apps/www/app/(main)/opportunities/[slug]/@see_also/page.tsx
+++ b/apps/www/app/(main)/opportunities/[slug]/@see_also/page.tsx
@@ -1,7 +1,8 @@
 //
 
 import type { Params } from ":pipes/opportunity_slug";
-import { TRPC_Hydrate, TRPC_SSR } from ":trpc/server";
+import { TRPC_Hydrate } from ":trpc/server";
+import { trpc_server } from "@1.infra/trpc/react-query/server";
 import { SeeAlso_Provider } from "./context";
 import Page_Client from "./page.client";
 
@@ -10,13 +11,13 @@ import Page_Client from "./page.client";
 export default async function Page({ params }: { params: Params }) {
   const { slug } = await params;
 
-  const opportunity = await TRPC_SSR.opportunity.by_slug.fetch(slug);
+  const opportunity = await trpc_server.opportunity.by_slug.fetch(slug);
   const {
     id,
     category: { slug: category },
   } = opportunity;
 
-  await TRPC_SSR.opportunity.find.prefetchInfinite({
+  await trpc_server.opportunity.find.prefetchInfinite({
     category,
     limit: 5,
   });
diff --git a/apps/www/app/(main)/opportunities/[slug]/delete.tsx b/apps/www/app/(main)/opportunities/[slug]/delete.tsx
index fbd36cbef..8036ada2b 100644
--- a/apps/www/app/(main)/opportunities/[slug]/delete.tsx
+++ b/apps/www/app/(main)/opportunities/[slug]/delete.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import { TRPC_React } from ":trpc/client";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import { Button } from "@1.ui/react/button";
 import { Trash } from "@1.ui/react/icons";
 import { Spinner } from "@1.ui/react/spinner";
@@ -78,9 +78,9 @@ function Idle() {
 function Deleting() {
   const { id: opportunity_id } = useOpportunity();
 
-  const delete_opportunity = TRPC_React.opportunity.delete.useMutation();
+  const delete_opportunity = trpc_client.opportunity.delete.useMutation();
   const router = useRouter();
-  const utils = TRPC_React.useUtils();
+  const utils = trpc_client.useUtils();
 
   useTimeoutEffect(async () => {
     await delete_opportunity.mutateAsync(opportunity_id);
diff --git a/apps/www/app/(main)/opportunities/[slug]/layout.tsx b/apps/www/app/(main)/opportunities/[slug]/layout.tsx
index 735097b6f..0cd085705 100644
--- a/apps/www/app/(main)/opportunities/[slug]/layout.tsx
+++ b/apps/www/app/(main)/opportunities/[slug]/layout.tsx
@@ -1,8 +1,8 @@
 //
 
+import { TrpcRootProvider } from ":trpc/root";
 import { Grid } from "@1.ui/react/grid";
 import { type PropsWithChildren } from "react";
-// import SeeAlso_Page from "./@see_also/page";
 
 //
 
@@ -15,8 +15,10 @@ export default async function Opoortunity_Layout({
       fluid
       className=" bg-white md:col-span-6 md:bg-transparent xl:col-span-9"
     >
-      <main className="col-span-full bg-white xl:col-span-9">{children}</main>
-      <aside className=" hidden xl:col-span-3 xl:block">{see_also}</aside>
+      <TrpcRootProvider>
+        <main className="col-span-full bg-white xl:col-span-9">{children}</main>
+        <aside className=" hidden xl:col-span-3 xl:block">{see_also}</aside>
+      </TrpcRootProvider>
     </Grid>
   );
 }
diff --git a/apps/www/app/(main)/opportunities/_client/List.tsx b/apps/www/app/(main)/opportunities/_client/List.tsx
index 29b34a48e..3e33b817a 100644
--- a/apps/www/app/(main)/opportunities/_client/List.tsx
+++ b/apps/www/app/(main)/opportunities/_client/List.tsx
@@ -1,7 +1,7 @@
 "use client";
 
-import { TRPC_React } from ":trpc/client";
 import { Card } from ":widgets/opportunities/card";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import { Partner_Filter } from "@1.modules/opportunity.domain";
 import { Opportunity_InfiniteList } from "@1.modules/opportunity.ui/InfiniteList";
 import { useSearchParams } from "next/navigation";
@@ -22,7 +22,7 @@ export default function List() {
     gtag("event", "search", { search, category, filter });
   }, [search, category, filter]);
 
-  const info = TRPC_React.opportunity.find.useInfiniteQuery(
+  const info = trpc_client.opportunity.find.useInfiniteQuery(
     {
       category,
       search,
diff --git a/apps/www/app/(main)/opportunities/layout.tsx b/apps/www/app/(main)/opportunities/layout.tsx
index 30d032192..0e7910f2a 100644
--- a/apps/www/app/(main)/opportunities/layout.tsx
+++ b/apps/www/app/(main)/opportunities/layout.tsx
@@ -9,6 +9,7 @@ import { match } from "ts-pattern";
 import { Partner_Opportunities_Filter } from "./_client/Partner_Opportunities_Filter";
 import SearchForm from "./_client/SearchForm";
 import Loading from "./loading";
+import { TrpcRootProvider } from ":trpc/root";
 
 //
 
@@ -28,12 +29,14 @@ export default async function Layout({
         </Suspense>
         <User_Opportunities_Filter />
         <hr className="my-5 md:my-10" />
-        {categories}
+        <TrpcRootProvider>{categories}</TrpcRootProvider>
       </AsideFilter>
 
-      <div className="col-span-full md:col-span-6 xl:col-span-9">
-        {children}
-      </div>
+      <TrpcRootProvider>
+        <div className="col-span-full md:col-span-6 xl:col-span-9">
+          {children}
+        </div>
+      </TrpcRootProvider>
     </Grid>
   );
 }
diff --git a/apps/www/app/(main)/opportunities/page.tsx b/apps/www/app/(main)/opportunities/page.tsx
index 0c7236066..950352f6e 100644
--- a/apps/www/app/(main)/opportunities/page.tsx
+++ b/apps/www/app/(main)/opportunities/page.tsx
@@ -1,6 +1,6 @@
 //
 
-import { TRPC_Hydrate, TRPC_SSR } from ":trpc/server";
+import { TRPC_Hydrate } from ":trpc/server";
 import {
   Partner_Filter,
   type OpportunitySearchParams,
@@ -8,6 +8,7 @@ import {
 import type { _1_HOUR_ } from "@douglasduteil/datatypes...hours-to-seconds";
 import type { Metadata, ResolvingMetadata } from "next";
 import List from "./_client/List";
+import { trpc_server } from "@1.infra/trpc/react-query/server";
 
 //
 
@@ -42,7 +43,7 @@ export default async function Page({
     ? filter_parsed_return.data
     : undefined;
 
-  await TRPC_SSR.opportunity.find.prefetchInfinite({
+  await trpc_server.opportunity.find.prefetchInfinite({
     category,
     filter,
     search,
diff --git a/apps/www/components/Share_Button.tsx b/apps/www/components/Share_Button.tsx
index 927c2f8d1..073c5eaad 100644
--- a/apps/www/components/Share_Button.tsx
+++ b/apps/www/components/Share_Button.tsx
@@ -24,6 +24,7 @@ export function Share_Button({
     5_000,
   );
   const copy_to_clipboard = useCallback(async () => {
+    if (!navigator.clipboard) return;
     await navigator.clipboard.writeText(
       href.startsWith("/") ? `${window.location.origin}${href}` : href,
     );
diff --git a/apps/www/components/avatar/index.tsx b/apps/www/components/avatar/index.tsx
index 5049616e9..3176f87a2 100644
--- a/apps/www/components/avatar/index.tsx
+++ b/apps/www/components/avatar/index.tsx
@@ -2,6 +2,7 @@
 
 import type { AvatarProfile } from "@1.modules/profile.domain";
 import { AvatarMedia, type AvatarMediaProps } from "@1.ui/react/avatar";
+import type { AvatarMediaVariantProps } from "@1.ui/react/avatar/atom";
 import Link from "next/link";
 
 //
@@ -25,10 +26,11 @@ export function SeeProfileAvatarMedia(
   );
 }
 
-export function ProfileAvatarMedia(
-  props: AvatarMediaProps & { profile: AvatarProfile },
-) {
-  const { profile, ...other_props } = props;
+export function ProfileAvatarMedia(props: {
+  profile: AvatarProfile;
+  variant?: AvatarMediaVariantProps;
+}) {
+  const { profile, variant, ...other_props } = props;
 
   return (
     <AvatarMedia
@@ -36,6 +38,7 @@ export function ProfileAvatarMedia(
       id={profile.id}
       image={profile.image}
       name={profile.name}
+      variant={variant}
       {...other_props}
     />
   );
diff --git a/apps/www/components/button/AddToMyCircles.tsx b/apps/www/components/button/AddToMyCircles.tsx
index 168ebe002..0a4bab5a9 100644
--- a/apps/www/components/button/AddToMyCircles.tsx
+++ b/apps/www/components/button/AddToMyCircles.tsx
@@ -10,8 +10,11 @@ import { match, P } from "ts-pattern";
 
 export function AddToMyCircles({ profile_id }: { profile_id: string }) {
   const find_contact =
-    TRPC_React.profile.me.contact.find_by_profile_id.useQuery(profile_id);
-  const toggle_contact = TRPC_React.profile.me.contact.toggle.useMutation();
+    TRPC_React.legacy_profile.me.contact.find_by_profile_id.useQuery(
+      profile_id,
+    );
+  const toggle_contact =
+    TRPC_React.legacy_profile.me.contact.toggle.useMutation();
   const utils = TRPC_React.useUtils();
   const { is_blocked } = useBlockProfile(profile_id);
 
@@ -19,8 +22,8 @@ export function AddToMyCircles({ profile_id }: { profile_id: string }) {
     await toggle_contact.mutateAsync(profile_id);
     await Promise.all([
       utils.exchanges.find.invalidate({ category: "MY_CIRCLES" }),
-      utils.profile.me.contact.find_by_profile_id.invalidate(profile_id),
-      utils.profile.me.contacts.invalidate({}),
+      utils.legacy_profile.me.contact.find_by_profile_id.invalidate(profile_id),
+      utils.legacy_profile.me.contacts.invalidate({}),
     ]);
     toggle_contact.reset();
   }, [toggle_contact, utils, profile_id]);
diff --git a/apps/www/components/button/BlockProfile.tsx b/apps/www/components/button/BlockProfile.tsx
index 456c89235..312169d79 100644
--- a/apps/www/components/button/BlockProfile.tsx
+++ b/apps/www/components/button/BlockProfile.tsx
@@ -42,16 +42,17 @@ export function BlockProfile({ profile_id }: { profile_id: ID_Schema }) {
 }
 
 export function useBlockProfile(profile_id: ID_Schema) {
-  const find_profile = TRPC_React.profile.me.blacklist.find.useQuery({
+  const find_profile = TRPC_React.legacy_profile.me.blacklist.find.useQuery({
     profile_id,
   });
-  const toggle_mutation = TRPC_React.profile.me.blacklist.toggle.useMutation();
+  const toggle_mutation =
+    TRPC_React.legacy_profile.me.blacklist.toggle.useMutation();
   const utils = TRPC_React.useUtils();
 
   const toggle_add_to_blacklist = useCallback(async () => {
     await toggle_mutation.mutateAsync({ profile_id });
     await Promise.all([
-      utils.profile.me.blacklist.find.refetch({ profile_id }),
+      utils.legacy_profile.me.blacklist.find.refetch({ profile_id }),
       utils.invalidate(),
     ]);
     toggle_mutation.reset();
diff --git a/apps/www/app/(main)/navbar.client.tsx b/apps/www/components/navbar/UserBar.client.tsx
similarity index 94%
rename from apps/www/app/(main)/navbar.client.tsx
rename to apps/www/components/navbar/UserBar.client.tsx
index f4cb379c3..b52974f20 100644
--- a/apps/www/app/(main)/navbar.client.tsx
+++ b/apps/www/components/navbar/UserBar.client.tsx
@@ -1,13 +1,10 @@
 "use client";
 
-import {
-  Partner_NavBar,
-  Student_NavBar,
-} from ":components/navbar/aside_navbar";
+import { Partner_NavBar, Student_NavBar } from "./aside_navbar";
 import type { Partner, Student } from "@1.modules/profile.domain";
 import { useToggle } from "@react-hookz/web";
-
 import { type PropsWithChildren, type ReactNode } from "react";
+
 //
 export function UserMenuToggleStudent({
   student,
diff --git a/apps/www/app/(main)/navbar.tsx b/apps/www/components/navbar/UserBar.tsx
similarity index 93%
rename from apps/www/app/(main)/navbar.tsx
rename to apps/www/components/navbar/UserBar.tsx
index e0fd2f7da..570566a89 100644
--- a/apps/www/app/(main)/navbar.tsx
+++ b/apps/www/components/navbar/UserBar.tsx
@@ -6,6 +6,7 @@ import {
   Notification_DotIndicator,
 } from ":components/navbar/notification_indicator.client";
 import { MobileNavBar } from ":components/shell/MobileNavBar";
+import { TrpcRootProvider } from ":trpc/root";
 import { TRPC_SSR } from ":trpc/server";
 import { auth } from "@1.modules/auth.next";
 import { PROFILE_ROLES, type AuthProfile } from "@1.modules/profile.domain";
@@ -17,7 +18,7 @@ import Link from "next/link";
 import { type ComponentPropsWithoutRef } from "react";
 import { tv } from "tailwind-variants";
 import { match } from "ts-pattern";
-import { UserMenuTogglePartner, UserMenuToggleStudent } from "./navbar.client";
+import { UserMenuTogglePartner, UserMenuToggleStudent } from "./UserBar.client";
 
 //
 
@@ -32,8 +33,9 @@ export default function UserBar() {
         </figure>
 
         <MobileNavBar className="left-0 right-0 z-50 hidden h-16 sm:z-auto sm:col-auto sm:h-full md:col-span-4 md:block xl:col-span-6 sm:[&>ul]:w-full lg:[&>ul]:w-auto" />
-
-        <UserNavGroup className="h-full md:col-span-2 xl:col-span-3" />
+        <TrpcRootProvider>
+          <UserNavGroup className="h-full md:col-span-2 xl:col-span-3" />
+        </TrpcRootProvider>
       </Grid>
     </header>
   );
@@ -107,7 +109,7 @@ const user_nav_group_variants = tv(
   },
 );
 async function MyStudentProfile({ profile }: { profile: AuthProfile }) {
-  const student = await TRPC_SSR.profile.student?.by_profile_id.fetch(
+  const student = await TRPC_SSR.legacy_profile.student?.by_profile_id.fetch(
     profile.id,
   );
 
@@ -139,7 +141,7 @@ async function MyStudentProfile({ profile }: { profile: AuthProfile }) {
 }
 
 async function MyPartnerProfile({ profile }: { profile: AuthProfile }) {
-  const partner = await TRPC_SSR.profile.partner?.by_profile_id.fetch(
+  const partner = await TRPC_SSR.legacy_profile.partner?.by_profile_id.fetch(
     profile.id,
   );
 
diff --git a/apps/www/components/navbar/aside_navbar.tsx b/apps/www/components/navbar/aside_navbar.tsx
index 52b2b7c8e..6b27d9d01 100644
--- a/apps/www/components/navbar/aside_navbar.tsx
+++ b/apps/www/components/navbar/aside_navbar.tsx
@@ -23,6 +23,7 @@ import {
   NewsInExchange_Indicator,
   NewsInMessage_Indicator,
 } from "./notification_indicator.client";
+import { TrpcRootProvider } from ":trpc/root";
 
 //
 
@@ -50,7 +51,9 @@ export function Student_NavBar({
           href="./exchanges/inbox"
         >
           Cercles d'échanges
-          <NewsInExchange_Indicator />
+          <TrpcRootProvider>
+            <NewsInExchange_Indicator />
+          </TrpcRootProvider>
         </Li_Link>
         <Li_Link
           onClick={onClickLink}
@@ -87,7 +90,9 @@ export function Student_NavBar({
         </SubNav_Bookmarks>
         <Li_Link onClick={onClickLink} icon={<Envelope />} href="./inbox">
           Messages privés
-          <NewsInMessage_Indicator />
+          <TrpcRootProvider>
+            <NewsInMessage_Indicator />
+          </TrpcRootProvider>
         </Li_Link>
         <Li_Link
           onClick={onClickLink}
diff --git a/apps/www/components/placeholder/BlockedProfile_Placeholder.tsx b/apps/www/components/placeholder/BlockedProfile_Placeholder.tsx
index 491a327a2..8c645a12c 100644
--- a/apps/www/components/placeholder/BlockedProfile_Placeholder.tsx
+++ b/apps/www/components/placeholder/BlockedProfile_Placeholder.tsx
@@ -10,7 +10,7 @@ export function BlockedProfile_Placeholder({
 }: {
   recipient_id: ID_Schema;
 }) {
-  const blacklist_item = TRPC_React.profile.me.blacklist.find.useQuery({
+  const blacklist_item = TRPC_React.legacy_profile.me.blacklist.find.useQuery({
     profile_id: recipient_id,
   });
   if (!blacklist_item.data) return null;
diff --git a/apps/www/components/shell/RootProviders.tsx b/apps/www/components/shell/RootProviders.tsx
index e674decde..eda311e4f 100644
--- a/apps/www/components/shell/RootProviders.tsx
+++ b/apps/www/components/shell/RootProviders.tsx
@@ -1,7 +1,7 @@
 "use client";
 
 import { LegalProvider } from ":components/terms/context";
-import { TrpcRootProvider } from ":trpc/root";
+import { TrpcProvider } from ":trpc/client";
 import { SessionProvider } from "@1.modules/auth.next/react";
 import { useMediaQuery } from "@react-hookz/web";
 import {
@@ -27,7 +27,7 @@ export function RootProviders({ children }: PropsWithChildren) {
       <LegalProvider>
         <AuthSessionProvider>
           <ReactQueryClientProvider>
-            <TrpcRootProvider>{children}</TrpcRootProvider>
+            <TrpcProvider>{children}</TrpcProvider>
           </ReactQueryClientProvider>
         </AuthSessionProvider>
       </LegalProvider>
diff --git a/apps/www/widgets/exchanges/card/actions.tsx b/apps/www/widgets/exchanges/card/actions.tsx
index 2a537f241..6e6ec68ce 100644
--- a/apps/www/widgets/exchanges/card/actions.tsx
+++ b/apps/www/widgets/exchanges/card/actions.tsx
@@ -1,6 +1,6 @@
 //
 
-import { TRPC_React } from ":trpc/client";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import { useSession } from "@1.modules/auth.next/react";
 import { Exchange_TypeSchema, type Exchange } from "@1.modules/exchange.domain";
 import { Exchange_Ask_Modal } from "@1.modules/exchange.ui/ask/modal";
@@ -32,7 +32,7 @@ export function Exchange_Actions() {
 
 function Exchange_Action_Ask(exchange: Exchange) {
   const { is_studient } = useExchangeMeta();
-  const query = TRPC_React.exchanges.me.deal_by_exchange_id.useQuery(
+  const query = trpc_client.exchanges.me.deal_by_exchange_id.useQuery(
     exchange.id,
     { enabled: is_studient },
   );
diff --git a/apps/www/widgets/exchanges/card/bookmark.tsx b/apps/www/widgets/exchanges/card/bookmark.tsx
index 8b464cc5b..4631ebcae 100644
--- a/apps/www/widgets/exchanges/card/bookmark.tsx
+++ b/apps/www/widgets/exchanges/card/bookmark.tsx
@@ -1,7 +1,7 @@
 //
 
 import { AppToastOptions } from ":components/toast";
-import { TRPC_React } from ":trpc/client";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import { useSession } from "@1.modules/auth.next/react";
 import type { BookmarkButton_Props } from "@1.modules/bookmark.ui/BookmarkButton";
 import { useExchange } from "@1.modules/exchange.ui/Card/context";
@@ -21,7 +21,7 @@ export function Exchange_Bookmark() {
   const { data: session } = useSession();
 
   const is_student = session?.profile.role === PROFILE_ROLES.Enum.STUDENT;
-  const query = TRPC_React.bookmarks.check.useQuery(
+  const query = trpc_client.bookmarks.check.useQuery(
     {
       target_id: exchange.id,
       type: "exchange",
@@ -54,8 +54,8 @@ export function Exchange_Bookmark() {
 
 function BookmarkItem_Toggle_Mutation(props: BookmarkButton_Props) {
   const { className, target_id, type, variants } = props;
-  const toggle = TRPC_React.bookmarks.toggle.useMutation();
-  const utils = TRPC_React.useUtils();
+  const toggle = trpc_client.bookmarks.toggle.useMutation();
+  const utils = trpc_client.useUtils();
   const { base, icon } = style({ ...variants });
   return (
     <button
diff --git a/apps/www/widgets/exchanges/card/index.tsx b/apps/www/widgets/exchanges/card/index.tsx
index e3858379a..96a082585 100644
--- a/apps/www/widgets/exchanges/card/index.tsx
+++ b/apps/www/widgets/exchanges/card/index.tsx
@@ -2,7 +2,7 @@
 
 import { ReactMarkdown } from ":components/markdown";
 import { AppToastOptions } from ":components/toast";
-import { TRPC_React } from ":trpc/client";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import type { Exchange } from "@1.modules/exchange.domain";
 import { Card } from "@1.modules/exchange.ui/Card/Card";
 import { Card_Deleting } from "@1.modules/exchange.ui/Card/Card_Deleting";
@@ -72,11 +72,11 @@ function Card_Outlet({ children }: PropsWithChildren) {
 
 function Deleting({ children }: PropsWithChildren) {
   const { id: exchange_id } = useExchange();
-  const utils = TRPC_React.useUtils();
-  const delete_exchange = TRPC_React.exchanges.me.delete.useMutation();
+  const utils = trpc_client.useUtils();
+  const delete_exchange = trpc_client.exchanges.me.delete.useMutation();
 
   useTimeoutEffect(async () => {
-    await delete_exchange.mutateAsync(exchange_id);
+    await delete_exchange.mutateAsync({ exchange_id });
 
     await Promise.all([
       utils.exchanges.by_id.invalidate(exchange_id),
diff --git a/apps/www/widgets/exchanges/card/share.tsx b/apps/www/widgets/exchanges/card/share.tsx
index 2a7667cd0..9e6fae120 100644
--- a/apps/www/widgets/exchanges/card/share.tsx
+++ b/apps/www/widgets/exchanges/card/share.tsx
@@ -1,4 +1,4 @@
-//
+"use client";
 
 import { Share_Button } from ":components/Share_Button";
 import { useExchange } from "@1.modules/exchange.ui/Card/context";
diff --git a/apps/www/widgets/exchanges/list/List.tsx b/apps/www/widgets/exchanges/list/List.tsx
index 1f5c6e86c..c5983d616 100644
--- a/apps/www/widgets/exchanges/list/List.tsx
+++ b/apps/www/widgets/exchanges/list/List.tsx
@@ -115,10 +115,6 @@ function Item({ id }: Entity) {
 
 //
 
-function useQueryExchangeById(id: string) {
-  return trpc_client.exchanges.by_id.useQuery(id);
-}
-
 function Exchange_byId({
   children,
   id,
@@ -126,7 +122,7 @@ function Exchange_byId({
   id: string;
   children: (exchange: Exchange) => ReactNode;
 }) {
-  const info = useQueryExchangeById(id);
+  const info = trpc_client.exchanges.by_id.useQuery(id);
   return (
     <Exchange_AsyncCard
       info={info as ComponentProps<typeof Exchange_AsyncCard>["info"]}
diff --git a/apps/www/widgets/inbox/BlockedProfileWarning.tsx b/apps/www/widgets/inbox/BlockedProfileWarning.tsx
index d41a9a6e1..9f091a0c6 100644
--- a/apps/www/widgets/inbox/BlockedProfileWarning.tsx
+++ b/apps/www/widgets/inbox/BlockedProfileWarning.tsx
@@ -10,7 +10,7 @@ export function BlockedProfileWarning({
 }: {
   recipient_id: ID_Schema;
 }) {
-  const blacklist_item = TRPC_React.profile.me.blacklist.find.useQuery({
+  const blacklist_item = TRPC_React.legacy_profile.me.blacklist.find.useQuery({
     profile_id: recipient_id,
   });
   if (!blacklist_item.data) return null;
diff --git a/apps/www/widgets/opportunities/card/index.tsx b/apps/www/widgets/opportunities/card/index.tsx
index 8ee607d31..685de7a49 100644
--- a/apps/www/widgets/opportunities/card/index.tsx
+++ b/apps/www/widgets/opportunities/card/index.tsx
@@ -3,7 +3,7 @@
 import { Share_Button } from ":components/Share_Button";
 import { preventNProgressLoader } from ":components/helpers/preventNProgressLoader";
 import { AppToastOptions } from ":components/toast";
-import { TRPC_React } from ":trpc/client";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import { useSession } from "@1.modules/auth.next/react";
 import type { BookmarkButton_Props } from "@1.modules/bookmark.ui/BookmarkButton";
 import { type CardOportunity } from "@1.modules/opportunity.domain";
@@ -68,8 +68,8 @@ function BookmarkItem_Query(props: BookmarkButton_Props) {
 
 function BookmarkItem_Toggle_Mutation(props: BookmarkButton_Props) {
   const { className, target_id, type, variants } = props;
-  const toggle = TRPC_React.bookmarks.toggle.useMutation();
-  const utils = TRPC_React.useUtils();
+  const toggle = trpc_client.bookmarks.toggle.useMutation();
+  const utils = trpc_client.useUtils();
   const { base, icon } = style({ ...variants });
 
   return (
diff --git a/apps/www/widgets/opportunities/list/index.tsx b/apps/www/widgets/opportunities/list/index.tsx
index c7f569f9c..1aa3b1674 100644
--- a/apps/www/widgets/opportunities/list/index.tsx
+++ b/apps/www/widgets/opportunities/list/index.tsx
@@ -1,9 +1,9 @@
 "use client";
 
 import { Loading_Placeholder } from ":components/placeholder/Loading_Placeholder";
-import { TRPC_React } from ":trpc/client";
 import { Card } from ":widgets/opportunities/card";
 import type { RouterOutput } from "@1.infra/trpc";
+import { trpc_client } from "@1.infra/trpc/react-query/client";
 import { Button } from "@1.ui/react/button";
 import type { InfiniteQueryObserverSuccessResult } from "@tanstack/react-query";
 import { motion, type MotionProps } from "motion/react";
@@ -24,12 +24,14 @@ export default function AsyncListInfinite(props: {
   const category = props.category ?? search_params.get("category") ?? undefined;
   const exclude_ids = props.exclude_ids ?? [];
 
-  const query_with_category_info = TRPC_React.opportunity.find.useInfiniteQuery(
-    { category, limit: 5 },
-    {
-      getNextPageParam: (lastPage) => lastPage.next_cursor,
-    },
-  );
+  const query_with_category_info =
+    trpc_client.opportunity.find.useInfiniteQuery(
+      { category, limit: 5 },
+      {
+        getNextPageParam: (lastPage) => lastPage.next_cursor,
+      },
+    );
+
   const nothing_found_with_category =
     query_with_category_info.isFetched &&
     query_with_category_info.data &&
@@ -39,7 +41,7 @@ export default function AsyncListInfinite(props: {
       .filter(({ id }) => !exclude_ids.includes(id)).length === 0;
 
   const query_without_category_info =
-    TRPC_React.opportunity.find.useInfiniteQuery(
+    trpc_client.opportunity.find.useInfiniteQuery(
       { limit: 5 },
       {
         getNextPageParam: (lastPage) => lastPage.next_cursor,
diff --git a/packages/@1/infra/database/seeding/studient/douglas.ts b/packages/@1/infra/database/seeding/studient/douglas.ts
index a7f4dcc26..669f24a63 100644
--- a/packages/@1/infra/database/seeding/studient/douglas.ts
+++ b/packages/@1/infra/database/seeding/studient/douglas.ts
@@ -8,6 +8,7 @@ export async function create_douglas_student(prisma: PrismaClient) {
   const { id } = await prisma.student.create({
     data: {
       city: "London",
+      created_at: new Date(),
       field_of_study: "Film",
       id: "douglas_student_id",
       profile: {
@@ -26,6 +27,7 @@ export async function create_douglas_student(prisma: PrismaClient) {
         },
       },
       university: "University of London",
+      updated_at: new Date(),
     },
     select: { id: true },
   });
diff --git a/packages/@1/infra/database/seeding/studient/joedart.ts b/packages/@1/infra/database/seeding/studient/joedart.ts
index be9544bef..07e670e0c 100644
--- a/packages/@1/infra/database/seeding/studient/joedart.ts
+++ b/packages/@1/infra/database/seeding/studient/joedart.ts
@@ -8,6 +8,7 @@ export async function create_joedart_student(prisma: PrismaClient) {
   const { id } = await prisma.student.create({
     data: {
       city: "Harbor Springs, Michigan",
+      created_at: new Date(),
       field_of_study: "Groove",
       id: "joedart_student_id",
       profile: {
@@ -26,6 +27,7 @@ export async function create_joedart_student(prisma: PrismaClient) {
         },
       },
       university: "Université du Michigan",
+      updated_at: new Date(),
     },
     select: { id: true },
   });
diff --git a/packages/@1/infra/database/seeding/studient/johan.ts b/packages/@1/infra/database/seeding/studient/johan.ts
index 2287942d7..bcd36040d 100644
--- a/packages/@1/infra/database/seeding/studient/johan.ts
+++ b/packages/@1/infra/database/seeding/studient/johan.ts
@@ -8,14 +8,17 @@ export async function create_johan_student(prisma: PrismaClient) {
   const { id } = await prisma.student.create({
     data: {
       city: "Stockholm",
+      created_at: new Date(),
       field_of_study: "Film",
       id: "johan_student_id",
       profile: {
         create: {
+          created_at: new Date(),
           id: "johan_profile_id",
           image: "https://picsum.photos/200/300",
           name: "Johan",
           role: "STUDENT",
+          updated_at: new Date(),
           user: {
             create: {
               id: "johan_user_id",
@@ -26,6 +29,7 @@ export async function create_johan_student(prisma: PrismaClient) {
         },
       },
       university: "Stockholm University",
+      updated_at: new Date(),
     },
     select: { id: true },
   });
diff --git a/packages/@1/infra/database/testing/index.ts b/packages/@1/infra/database/testing/index.ts
index b7c636ff4..e6f5b4c29 100644
--- a/packages/@1/infra/database/testing/index.ts
+++ b/packages/@1/infra/database/testing/index.ts
@@ -42,6 +42,7 @@ export async function empty_database() {
 export async function database_status() {
   console.log("🕵️ DATABASE STATUS");
   console.log({
+    category: await prisma.category.count(),
     exchange_message_notification:
       await prisma.exchangeMessageNotification.count(),
     inbox_message_notification: await prisma.inboxMessageNotification.count(),
diff --git a/packages/@1/infra/trpc/src/index.ts b/packages/@1/infra/trpc/src/index.ts
index 7cb577b0f..0a5f919ac 100644
--- a/packages/@1/infra/trpc/src/index.ts
+++ b/packages/@1/infra/trpc/src/index.ts
@@ -10,6 +10,7 @@ import inbox_api_router from "@1.modules/inbox.api";
 import notification_api_router from "@1.modules/notification.api";
 import opportunity_api_router from "@1.modules/opportunity.api";
 import profile_api_router from "@1.modules/profile.api";
+import legacy_profile_api_router from "@1.modules/profile.api/legacy";
 import { partner_api_router } from "@1.modules/profile.api/partner";
 import { student_api_router } from "@1.modules/profile.api/student";
 import { procedure, router } from "@1.modules/trpc";
@@ -43,6 +44,7 @@ export const root_router = router({
   notification: notification_api_router,
   opportunity: opportunity_api_router,
   partner: partner_api_router,
+  legacy_profile: legacy_profile_api_router,
   profile: profile_api_router,
   student: student_api_router,
 });
diff --git a/packages/@1/modules/auth/api/src/index.ts b/packages/@1/modules/auth/api/src/index.ts
index 88c217c29..cb011cf78 100644
--- a/packages/@1/modules/auth/api/src/index.ts
+++ b/packages/@1/modules/auth/api/src/index.ts
@@ -2,8 +2,8 @@
 
 import { mergeRouters } from "@1.modules/trpc";
 import signup_router from "./signup";
-import verify_router from "./verify";
+import { verify_api_router } from "./verify";
 
 //
 
-export default mergeRouters(signup_router, verify_router);
+export default mergeRouters(signup_router, verify_api_router);
diff --git a/packages/@1/modules/auth/api/src/verify/index.ts b/packages/@1/modules/auth/api/src/verify/index.ts
index fca771da7..d5f64f468 100644
--- a/packages/@1/modules/auth/api/src/verify/index.ts
+++ b/packages/@1/modules/auth/api/src/verify/index.ts
@@ -1,17 +1,3 @@
 //
 
-import { procedure, router } from "@1.modules/trpc";
-import { z } from "zod";
-
-//
-
-export default router({
-  verify: procedure
-    .input(z.object({ email: z.string() }))
-    .mutation(async ({ ctx: { prisma }, input: { email } }) => {
-      return prisma.user.findUnique({
-        select: { id: true },
-        where: { email },
-      });
-    }),
-});
+export { default as verify_api_router } from "./verify";
diff --git a/packages/@1/modules/auth/api/src/verify/verify.e2e.test.ts b/packages/@1/modules/auth/api/src/verify/verify.e2e.test.ts
index 286a062ac..ecbf1bed4 100644
--- a/packages/@1/modules/auth/api/src/verify/verify.e2e.test.ts
+++ b/packages/@1/modules/auth/api/src/verify/verify.e2e.test.ts
@@ -4,7 +4,7 @@ import { create_douglas_student } from "@1.infra/database/seeding";
 import prisma, { empty_database, migrate } from "@1.infra/database/testing";
 import { createCallerFactory } from "@1.modules/trpc";
 import { beforeAll, expect, test } from "bun:test";
-import verify_router from "./index";
+import verify_router from "./verify";
 
 //
 
diff --git a/packages/@1/modules/auth/api/src/verify/verify.ts b/packages/@1/modules/auth/api/src/verify/verify.ts
new file mode 100644
index 000000000..fca771da7
--- /dev/null
+++ b/packages/@1/modules/auth/api/src/verify/verify.ts
@@ -0,0 +1,17 @@
+//
+
+import { procedure, router } from "@1.modules/trpc";
+import { z } from "zod";
+
+//
+
+export default router({
+  verify: procedure
+    .input(z.object({ email: z.string() }))
+    .mutation(async ({ ctx: { prisma }, input: { email } }) => {
+      return prisma.user.findUnique({
+        select: { id: true },
+        where: { email },
+      });
+    }),
+});
diff --git a/packages/@1/modules/bookmark/api/package.json b/packages/@1/modules/bookmark/api/package.json
index 47bd8d191..5fcd2909b 100644
--- a/packages/@1/modules/bookmark/api/package.json
+++ b/packages/@1/modules/bookmark/api/package.json
@@ -29,6 +29,7 @@
   },
   "devDependencies": {
     "@1.config/typescript": "workspace:*",
+    "@1.infra/database": "workspace:*",
     "@types/node": "22.10.2",
     "typescript": "5.7.2"
   }
diff --git a/packages/@1/modules/bookmark/api/src/check/check.e2e.test.ts b/packages/@1/modules/bookmark/api/src/check/check.e2e.test.ts
new file mode 100644
index 000000000..3acc9cb2e
--- /dev/null
+++ b/packages/@1/modules/bookmark/api/src/check/check.e2e.test.ts
@@ -0,0 +1,66 @@
+//
+
+import {
+  create_douglas_student,
+  create_film_category,
+  create_the_creator_exchange,
+} from "@1.infra/database/seeding";
+import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory } from "@1.modules/trpc";
+import { douglas_student_session } from "@1.modules/trpc/testing";
+import { afterEach, beforeAll, beforeEach, expect, test } from "bun:test";
+import api_router from "./check";
+
+//
+
+beforeAll(empty_database);
+beforeAll(migrate);
+
+//
+
+test("return false when an exchange is not bookmarked", async () => {
+  const caller = createCallerFactory(api_router);
+  const trpc = caller({
+    auth: () => douglas_student_session,
+    prisma,
+  } as any);
+  const data = await trpc.check({
+    target_id: "the_creator_exchange_id",
+    type: "exchange",
+  });
+  expect(data).toBeFalse();
+});
+
+test("return true when an exchange is bookmarked", async () => {
+  const caller = createCallerFactory(api_router);
+  const trpc = caller({
+    auth: () => douglas_student_session,
+    prisma,
+  } as any);
+
+  await prisma.bookmark.create({
+    data: {
+      owner_id: "douglas_profile_id",
+      exchange_id: "the_creator_exchange_id",
+    },
+  });
+
+  const data = await trpc.check({
+    target_id: "the_creator_exchange_id",
+    type: "exchange",
+  });
+  expect(data).toBeTrue();
+});
+
+//
+
+beforeEach(async function seed() {
+  await create_douglas_student(prisma);
+  await create_film_category(prisma);
+  await create_the_creator_exchange(prisma, "douglas_student_id");
+});
+
+afterEach(async function empty_delete_entries() {
+  await prisma.category.deleteMany();
+  await prisma.user.deleteMany();
+});
diff --git a/packages/@1/modules/bookmark/api/src/check/check.ts b/packages/@1/modules/bookmark/api/src/check/check.ts
new file mode 100644
index 000000000..e977dea9b
--- /dev/null
+++ b/packages/@1/modules/bookmark/api/src/check/check.ts
@@ -0,0 +1,32 @@
+//
+
+import { Bookmark_Category } from "@1.modules/bookmark.domain";
+import { router } from "@1.modules/trpc";
+import { match } from "ts-pattern";
+import { z } from "zod";
+import { bookmark_type_procedure } from "../procedure";
+
+//
+
+export default router({
+  check: bookmark_type_procedure
+    .input(z.object({ target_id: z.string() }))
+    .query(async ({ ctx: { prisma, session }, input: { target_id, type } }) => {
+      const { id: owner_id } = session.profile;
+
+      const where = match(type)
+        .with(Bookmark_Category.Enum.exchange, () => ({
+          exchange_id: target_id,
+        }))
+        .with(Bookmark_Category.Enum.opportunity, () => ({
+          opportunity_id: target_id,
+        }))
+        .exhaustive();
+
+      const count = await prisma.bookmark.count({
+        where: { owner_id, ...where },
+      });
+
+      return count === 1;
+    }),
+});
diff --git a/packages/@1/modules/bookmark/api/src/check/index.ts b/packages/@1/modules/bookmark/api/src/check/index.ts
new file mode 100644
index 000000000..64ac55352
--- /dev/null
+++ b/packages/@1/modules/bookmark/api/src/check/index.ts
@@ -0,0 +1,3 @@
+//
+
+export { default as check_api_router } from "./check";
diff --git a/packages/@1/modules/bookmark/api/src/index.ts b/packages/@1/modules/bookmark/api/src/index.ts
index 659d8724a..6d52b89dd 100644
--- a/packages/@1/modules/bookmark/api/src/index.ts
+++ b/packages/@1/modules/bookmark/api/src/index.ts
@@ -1,47 +1,22 @@
 //
 
 import { Bookmark_Category } from "@1.modules/bookmark.domain";
-import { next_auth_procedure, router } from "@1.modules/trpc";
+import { mergeRouters, router, session_procedure } from "@1.modules/trpc";
 import { match } from "ts-pattern";
 import { z } from "zod";
+import { check_api_router } from "./check";
+import { bookmark_type_procedure } from "./procedure";
 
 //
 
-const bookmark_type = next_auth_procedure.input(
-  z.object({ type: Bookmark_Category }),
-);
-
 const bookmarks_api_router = router({
   //
 
-  check: bookmark_type
-    .input(z.object({ target_id: z.string() }))
-    .query(async ({ ctx: { prisma, payload }, input: { target_id, type } }) => {
-      const { id: owner_id } = payload.profile;
-
-      const where = match(type)
-        .with(Bookmark_Category.Enum.exchange, () => ({
-          exchange_id: target_id,
-        }))
-        .with(Bookmark_Category.Enum.opportunity, () => ({
-          opportunity_id: target_id,
-        }))
-        .exhaustive();
-
-      const count = await prisma.bookmark.count({
-        where: { owner_id, ...where },
-      });
-
-      return count === 1;
-    }),
-
-  //
-
-  toggle: bookmark_type
+  toggle: bookmark_type_procedure
     .input(z.object({ target_id: z.string() }))
     .mutation(
-      async ({ ctx: { prisma, payload }, input: { target_id, type } }) => {
-        const { id: owner_id } = payload.profile;
+      async ({ ctx: { prisma, session }, input: { target_id, type } }) => {
+        const { id: owner_id } = session.profile;
 
         const where = match(type)
           .with(Bookmark_Category.Enum.exchange, () => ({
@@ -72,8 +47,8 @@ const bookmarks_api_router = router({
   //
 
   exchanges: router({
-    find: next_auth_procedure.query(async ({ ctx: { prisma, payload } }) => {
-      const { id: owner_id } = payload.profile;
+    find: session_procedure.query(async ({ ctx: { prisma, session } }) => {
+      const { id: owner_id } = session.profile;
       const bookmarks = await prisma.bookmark.findMany({
         where: { owner_id, exchange_id: { not: null } },
         include: {
@@ -96,8 +71,8 @@ const bookmarks_api_router = router({
   //
 
   opportunities: router({
-    find: next_auth_procedure.query(async ({ ctx: { prisma, payload } }) => {
-      const { id: owner_id } = payload.profile;
+    find: session_procedure.query(async ({ ctx: { prisma, session } }) => {
+      const { id: owner_id } = session.profile;
       const bookmarks = await prisma.bookmark.findMany({
         where: { owner_id, opportunity_id: { not: null } },
         include: {
@@ -113,5 +88,4 @@ const bookmarks_api_router = router({
   }),
 });
 
-export default bookmarks_api_router;
-export type BookmarksApiRouter = typeof bookmarks_api_router;
+export default mergeRouters(check_api_router, bookmarks_api_router);
diff --git a/packages/@1/modules/bookmark/api/src/procedure.ts b/packages/@1/modules/bookmark/api/src/procedure.ts
new file mode 100644
index 000000000..0ddd9e2c3
--- /dev/null
+++ b/packages/@1/modules/bookmark/api/src/procedure.ts
@@ -0,0 +1,11 @@
+//
+
+import { Bookmark_Category } from "@1.modules/bookmark.domain";
+import { session_procedure } from "@1.modules/trpc";
+import { z } from "zod";
+
+//
+
+export const bookmark_type_procedure = session_procedure.input(
+  z.object({ type: Bookmark_Category }),
+);
diff --git a/packages/@1/modules/bookmark/api/tsconfig.json b/packages/@1/modules/bookmark/api/tsconfig.json
index 24989db77..395c1620a 100644
--- a/packages/@1/modules/bookmark/api/tsconfig.json
+++ b/packages/@1/modules/bookmark/api/tsconfig.json
@@ -3,7 +3,7 @@
   "extends": "@1.config/typescript/lib.json",
   "compilerOptions": {
     "outDir": "./node_modules/.cache/tsc",
-    "types": ["node"]
+    "types": ["bun-types"]
   },
   "include": ["src"]
 }
diff --git a/packages/@1/modules/exchange/api/src/me/delete/__snapshots__/delete.e2e.test.ts.snap b/packages/@1/modules/exchange/api/src/me/delete/__snapshots__/delete.e2e.test.ts.snap
new file mode 100644
index 000000000..9c2188e20
--- /dev/null
+++ b/packages/@1/modules/exchange/api/src/me/delete/__snapshots__/delete.e2e.test.ts.snap
@@ -0,0 +1,39 @@
+// Bun Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`return count of all unread notifications 1`] = `
+{
+  "category_id": "film_category_id",
+  "created_at": 2011-11-10T00:00:00.000Z,
+  "description": "The Creator is a good film and you should watch it ;)",
+  "expiry_date": null,
+  "id": "the_creator_exchange_id",
+  "is_active": true,
+  "is_online": true,
+  "location": null,
+  "owner_id": "douglas_student_id",
+  "places": 1,
+  "return_id": null,
+  "title": "The Creator",
+  "type": "PROPOSAL",
+  "updated_at": 2011-11-10T00:00:00.000Z,
+}
+`;
+
+exports[`should delete an exchange and return it 1`] = `
+{
+  "category_id": "film_category_id",
+  "created_at": 2011-11-10T00:00:00.000Z,
+  "description": "The Creator is a good film and you should watch it ;)",
+  "expiry_date": null,
+  "id": "the_creator_exchange_id",
+  "is_active": true,
+  "is_online": true,
+  "location": null,
+  "owner_id": "douglas_student_id",
+  "places": 1,
+  "return_id": null,
+  "title": "The Creator",
+  "type": "PROPOSAL",
+  "updated_at": 2011-11-10T00:00:00.000Z,
+}
+`;
diff --git a/packages/@1/modules/exchange/api/src/me/delete/delete.e2e.test.ts b/packages/@1/modules/exchange/api/src/me/delete/delete.e2e.test.ts
new file mode 100644
index 000000000..68794e91f
--- /dev/null
+++ b/packages/@1/modules/exchange/api/src/me/delete/delete.e2e.test.ts
@@ -0,0 +1,42 @@
+//
+
+import {
+  create_douglas_student,
+  create_film_category,
+  create_the_creator_exchange,
+} from "@1.infra/database/seeding";
+import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory } from "@1.modules/trpc";
+import { douglas_student_session } from "@1.modules/trpc/testing";
+import { afterEach, beforeAll, beforeEach, expect, test } from "bun:test";
+import api_router from "./delete";
+
+//
+
+beforeAll(empty_database);
+beforeAll(migrate);
+
+//
+
+test("should delete an exchange and return it", async () => {
+  const caller = createCallerFactory(api_router);
+  const trpc = caller({
+    auth: () => douglas_student_session,
+    prisma,
+  } as any);
+  const data = await trpc.delete({ exchange_id: "the_creator_exchange_id" });
+  expect(data).toMatchSnapshot();
+});
+
+//
+
+beforeEach(async function seed() {
+  await create_douglas_student(prisma);
+  await create_film_category(prisma);
+  await create_the_creator_exchange(prisma, "douglas_student_id");
+});
+
+afterEach(async function empty_delete_entries() {
+  await prisma.category.deleteMany();
+  await prisma.user.deleteMany();
+});
diff --git a/packages/@1/modules/exchange/api/src/me/delete/delete.ts b/packages/@1/modules/exchange/api/src/me/delete/delete.ts
new file mode 100644
index 000000000..1a6c781e4
--- /dev/null
+++ b/packages/@1/modules/exchange/api/src/me/delete/delete.ts
@@ -0,0 +1,17 @@
+//
+
+import { router, session_procedure } from "@1.modules/trpc";
+import { z } from "zod";
+
+//
+
+export default router({
+  delete: session_procedure
+    .input(z.object({ exchange_id: z.string() }))
+    .mutation(({ input: { exchange_id }, ctx: { prisma, session } }) => {
+      const { id: profile_id } = session.profile;
+      return prisma.exchange.delete({
+        where: { id: exchange_id, owner: { profile_id } },
+      });
+    }),
+});
diff --git a/packages/@1/modules/exchange/api/src/me/delete/index.ts b/packages/@1/modules/exchange/api/src/me/delete/index.ts
new file mode 100644
index 000000000..b2b8e2bf6
--- /dev/null
+++ b/packages/@1/modules/exchange/api/src/me/delete/index.ts
@@ -0,0 +1,3 @@
+//
+
+export { default as delete_api_router } from "./delete";
diff --git a/packages/@1/modules/exchange/api/src/me/find.e2e.test.ts b/packages/@1/modules/exchange/api/src/me/find.e2e.test.ts
index 6828936ae..559e2ae29 100644
--- a/packages/@1/modules/exchange/api/src/me/find.e2e.test.ts
+++ b/packages/@1/modules/exchange/api/src/me/find.e2e.test.ts
@@ -87,8 +87,8 @@ test("should not return archived exchanges", async () => {
     headers: { ...nextauth_header },
     prisma,
   } as any);
-  const exchange = await trpc.find({});
-  expect(exchange).toMatchSnapshot();
+  const response = await trpc.find({});
+  expect(response).toMatchSnapshot();
 });
 
 //
diff --git a/packages/@1/modules/exchange/api/src/me/index.ts b/packages/@1/modules/exchange/api/src/me/index.ts
index cf5119138..5b67f02d4 100644
--- a/packages/@1/modules/exchange/api/src/me/index.ts
+++ b/packages/@1/modules/exchange/api/src/me/index.ts
@@ -1,14 +1,23 @@
 //
 
 import { Exchange_Create_Schema } from "@1.modules/exchange.domain";
-import { next_auth_procedure, router } from "@1.modules/trpc";
+import {
+  mergeRouters,
+  next_auth_procedure,
+  router,
+  session_procedure,
+} from "@1.modules/trpc";
 import { z } from "zod";
 import archive_router from "./archive";
+import { delete_api_router } from "./delete";
 import { find } from "./find";
 import { inbox } from "./inbox";
 import { thread_update } from "./thread_update";
 
-export const me = router({
+/**
+ * @deprecated externalize all the routes !
+ */
+const me_api_router = router({
   //
 
   archive: archive_router,
@@ -34,10 +43,10 @@ export const me = router({
       });
     }),
 
-  deal_by_exchange_id: next_auth_procedure
+  deal_by_exchange_id: session_procedure
     .input(z.string())
-    .query(async ({ ctx: { payload, prisma }, input: parent_id }) => {
-      const { profile } = payload;
+    .query(async ({ ctx: { session, prisma }, input: parent_id }) => {
+      const { profile } = session;
       const { id: student_id } = await prisma.student.findUniqueOrThrow({
         select: { id: true },
         where: { profile_id: profile.id },
@@ -58,17 +67,6 @@ export const me = router({
 
   //
 
-  delete: next_auth_procedure
-    .input(z.string())
-    .mutation(({ input: exchange_id, ctx: { prisma, payload } }) => {
-      const { id: profile_id } = payload.profile;
-      return prisma.exchange.delete({
-        where: { id: exchange_id, owner: { profile_id } },
-      });
-    }),
-
-  //
-
   find: find,
 
   //
@@ -95,3 +93,5 @@ export const me = router({
 
   thread_update,
 });
+
+export const me = mergeRouters(delete_api_router, me_api_router);
diff --git a/packages/@1/modules/exchange/api/src/public/by_id.e2e.test.ts b/packages/@1/modules/exchange/api/src/public/by_id.e2e.test.ts
index 01adab76a..dfa16614a 100644
--- a/packages/@1/modules/exchange/api/src/public/by_id.e2e.test.ts
+++ b/packages/@1/modules/exchange/api/src/public/by_id.e2e.test.ts
@@ -34,8 +34,8 @@ describe("visitor", () => {
       auth: () => null,
       prisma,
     } as any);
-    const exchange = await trpc.by_id("slap_exchange_id");
-    expect(exchange).toMatchSnapshot();
+    const response = await trpc.by_id("slap_exchange_id");
+    expect(response).toMatchSnapshot();
   });
 });
 
@@ -46,8 +46,8 @@ describe("connected studient", () => {
       auth: () => douglas_student_session,
       prisma,
     } as any);
-    const exchange = await trpc.by_id("slap_exchange_id");
-    expect(exchange).toMatchSnapshot();
+    const response = await trpc.by_id("slap_exchange_id");
+    expect(response).toMatchSnapshot();
   });
 });
 
diff --git a/packages/@1/modules/exchange/api/src/public/find.e2e.test.ts b/packages/@1/modules/exchange/api/src/public/find.e2e.test.ts
index 1baf1d5d1..70ea1875d 100644
--- a/packages/@1/modules/exchange/api/src/public/find.e2e.test.ts
+++ b/packages/@1/modules/exchange/api/src/public/find.e2e.test.ts
@@ -43,8 +43,8 @@ describe("visitor", () => {
   test("should return latest exchanges", async () => {
     const caller = createCallerFactory(find_api_router);
     const trpc = caller({ auth: () => null, prisma } as any);
-    const exchange = await trpc.find({});
-    expect(exchange).toMatchSnapshot();
+    const response = await trpc.find({});
+    expect(response).toMatchSnapshot();
   });
 
   test("should not list successful exchanges", async () => {
@@ -54,8 +54,8 @@ describe("visitor", () => {
     });
     const caller = createCallerFactory(find_api_router);
     const trpc = caller({ auth: () => null, prisma } as any);
-    const exchange = await trpc.find({});
-    expect(exchange).toMatchSnapshot();
+    const response = await trpc.find({});
+    expect(response).toMatchSnapshot();
   });
 
   test("should not list expired exchanges", async () => {
@@ -65,8 +65,8 @@ describe("visitor", () => {
     });
     const caller = createCallerFactory(find_api_router);
     const trpc = caller({ auth: () => null, prisma } as any);
-    const exchange = await trpc.find({});
-    expect(exchange).toMatchSnapshot();
+    const response = await trpc.find({});
+    expect(response).toMatchSnapshot();
   });
 });
 
@@ -77,8 +77,8 @@ describe("connected studient", () => {
       auth: () => douglas_student_session,
       prisma,
     } as any);
-    const exchange = await trpc.find({});
-    expect(exchange).toMatchSnapshot();
+    const response = await trpc.find({});
+    expect(response).toMatchSnapshot();
   });
 
   test("should not list exchanges created by profile I blocked", async () => {
@@ -91,8 +91,8 @@ describe("connected studient", () => {
       auth: () => douglas_student_session,
       prisma,
     } as any);
-    const exchange = await trpc.find({});
-    expect(exchange).toMatchSnapshot();
+    const response = await trpc.find({});
+    expect(response).toMatchSnapshot();
   });
 
   test("should not list exchanges created by profiles who blocked me", async () => {
@@ -105,8 +105,8 @@ describe("connected studient", () => {
       auth: () => douglas_student_session,
       prisma,
     } as any);
-    const exchange = await trpc.find({});
-    expect(exchange).toMatchSnapshot();
+    const response = await trpc.find({});
+    expect(response).toMatchSnapshot();
   });
 });
 
diff --git a/packages/@1/modules/forum/api/src/answers.ts b/packages/@1/modules/forum/api/src/answers.ts
index c38d7429b..fab57850f 100644
--- a/packages/@1/modules/forum/api/src/answers.ts
+++ b/packages/@1/modules/forum/api/src/answers.ts
@@ -1,9 +1,14 @@
 //
 
-import { NotificationType, type Prisma } from "@1.infra/database";
-import { ID_Schema } from "@1.modules/core/domain";
-import { next_auth_procedure, procedure, router } from "@1.modules/trpc";
+import {
+  mergeRouters,
+  next_auth_procedure,
+  procedure,
+  router,
+} from "@1.modules/trpc";
 import { z } from "zod";
+import { create_api_router } from "./answers/create";
+import { delete_api_router } from "./answers/delete";
 
 //
 
@@ -14,7 +19,10 @@ const protected_answers_procedure = next_auth_procedure.input(
   z.object({ question_id: z.string() }),
 );
 
-export const answers_api_router = router({
+/**
+ * @deprecated use merged routes instead
+ */
+const legacy_answers_api_router = router({
   //
 
   approve: protected_answers_procedure
@@ -38,14 +46,6 @@ export const answers_api_router = router({
     }),
 
   //
-  delete: next_auth_procedure
-    .input(ID_Schema)
-    .mutation(async ({ input: id, ctx: { prisma, payload } }) => {
-      return prisma.answer.delete({
-        where: { id, owner: { profile_id: payload.profile.id } },
-      });
-    }),
-  //
 
   disapprove: protected_answers_procedure
     .input(z.object({ answer_id: z.string(), question_id: z.string() }))
@@ -89,52 +89,6 @@ export const answers_api_router = router({
 
   //
 
-  create: protected_answers_procedure
-    .input(z.object({ content: z.string() }))
-    .mutation(async ({ input, ctx: { prisma, payload } }) => {
-      const {
-        profile: { id: profile_id },
-      } = payload;
-      const { content, question_id } = input;
-
-      const {
-        owner: { profile_id: owner_profile_id },
-      } = await prisma.question.findUniqueOrThrow({
-        select: { owner_id: true, owner: { select: { profile_id: true } } },
-        where: { id: question_id },
-      });
-      const is_self_answer = profile_id === owner_profile_id;
-
-      const create_forum_notifications: Pick<
-        Prisma.AnswerCreateInput,
-        "forum_notifications"
-      > = is_self_answer
-        ? {}
-        : {
-            forum_notifications: {
-              create: {
-                notification: {
-                  create: {
-                    type: NotificationType.FORUM_NEW_AWNSER,
-                    owner: { connect: { id: owner_profile_id } },
-                  },
-                },
-              },
-            },
-          };
-
-      return prisma.answer.create({
-        data: {
-          content,
-          owner: { connect: { profile_id } },
-          parent: { connect: { id: question_id } },
-          ...create_forum_notifications,
-        },
-      });
-    }),
-
-  //
-
   find: answers_procedure
     .input(
       z.object({
@@ -172,3 +126,9 @@ export const answers_api_router = router({
       return { data: items, nextCursor };
     }),
 });
+
+export const answers_api_router = mergeRouters(
+  create_api_router,
+  delete_api_router,
+  legacy_answers_api_router,
+);
diff --git a/packages/@1/modules/forum/api/src/answers/create/__snapshots__/create.e2e.test.ts.snap b/packages/@1/modules/forum/api/src/answers/create/__snapshots__/create.e2e.test.ts.snap
new file mode 100644
index 000000000..423a73ac2
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/answers/create/__snapshots__/create.e2e.test.ts.snap
@@ -0,0 +1,13 @@
+// Bun Snapshot v1, https://goo.gl/fbAQLP
+
+
+exports[`return an answer 1`] = `
+{
+  "content": "It's Dune bro ;)",
+  "created_at": Any<Date>,
+  "id": Any<String>,
+  "owner_id": "douglas_student_id",
+  "parent_id": "best-film-2011",
+  "updated_at": Any<Date>,
+}
+`;
diff --git a/packages/@1/modules/forum/api/src/answers/create/create.e2e.test.ts b/packages/@1/modules/forum/api/src/answers/create/create.e2e.test.ts
new file mode 100644
index 000000000..bc8ca5eae
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/answers/create/create.e2e.test.ts
@@ -0,0 +1,66 @@
+//
+
+import {
+  create_douglas_student,
+  create_film_category,
+} from "@1.infra/database/seeding";
+import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory, type Session } from "@1.modules/trpc";
+import { afterAll, beforeAll, expect, setSystemTime, test } from "bun:test";
+import create_quetion from "./create";
+
+//
+
+beforeAll(empty_database);
+beforeAll(migrate);
+beforeAll(() => {
+  setSystemTime(new Date("2011-11-11"));
+});
+
+//
+
+const auth = () =>
+  ({
+    profile: { id: "douglas_profile_id" },
+  }) as Session;
+
+test("return an answer", async () => {
+  const caller = createCallerFactory(create_quetion);
+  const trpc = caller({
+    auth,
+    prisma,
+  } as any);
+  const response = await trpc.create({
+    content: "It's Dune bro ;)",
+    question_id: "best-film-2011",
+  });
+
+  expect(response).toMatchSnapshot({
+    id: expect.any(String),
+    created_at: expect.any(Date),
+    updated_at: expect.any(Date),
+  });
+});
+
+//
+
+beforeAll(async function seed() {
+  const cinema_category_id = await create_film_category(prisma);
+  const douglas_student_id = await create_douglas_student(prisma);
+
+  await prisma.question.create({
+    data: {
+      id: "best-film-2011",
+      category_id: cinema_category_id,
+      created_at: new Date("2011-11-11"),
+      owner_id: douglas_student_id,
+      title: "What is the best film of 2011 ?",
+      updated_at: new Date("2011-11-11"),
+    },
+  });
+});
+
+afterAll(async function empty_delete_entries() {
+  await prisma.category.deleteMany();
+  await prisma.user.deleteMany();
+});
diff --git a/packages/@1/modules/forum/api/src/answers/create/create.ts b/packages/@1/modules/forum/api/src/answers/create/create.ts
new file mode 100644
index 000000000..513ba87eb
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/answers/create/create.ts
@@ -0,0 +1,54 @@
+//
+
+import { NotificationType, type Prisma } from "@1.infra/database";
+import { router } from "@1.modules/trpc";
+import { z } from "zod";
+import { protected_answers_procedure } from "../procedure";
+
+//
+
+export default router({
+  create: protected_answers_procedure
+    .input(z.object({ content: z.string() }))
+    .mutation(async ({ input, ctx: { prisma, session } }) => {
+      const {
+        profile: { id: profile_id },
+      } = session;
+      const { content, question_id } = input;
+
+      const {
+        owner: { profile_id: owner_profile_id },
+      } = await prisma.question.findUniqueOrThrow({
+        select: { owner_id: true, owner: { select: { profile_id: true } } },
+        where: { id: question_id },
+      });
+      const is_self_answer = profile_id === owner_profile_id;
+
+      const create_forum_notifications: Pick<
+        Prisma.AnswerCreateInput,
+        "forum_notifications"
+      > = is_self_answer
+        ? {}
+        : {
+            forum_notifications: {
+              create: {
+                notification: {
+                  create: {
+                    type: NotificationType.FORUM_NEW_AWNSER,
+                    owner: { connect: { id: owner_profile_id } },
+                  },
+                },
+              },
+            },
+          };
+
+      return prisma.answer.create({
+        data: {
+          content,
+          owner: { connect: { profile_id } },
+          parent: { connect: { id: question_id } },
+          ...create_forum_notifications,
+        },
+      });
+    }),
+});
diff --git a/packages/@1/modules/forum/api/src/answers/create/index.ts b/packages/@1/modules/forum/api/src/answers/create/index.ts
new file mode 100644
index 000000000..a577c36fc
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/answers/create/index.ts
@@ -0,0 +1,3 @@
+//
+
+export { default as create_api_router } from "./create";
diff --git a/packages/@1/modules/forum/api/src/answers/delete/__snapshots__/delete.e2e.test.ts.snap b/packages/@1/modules/forum/api/src/answers/delete/__snapshots__/delete.e2e.test.ts.snap
new file mode 100644
index 000000000..ae400c76e
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/answers/delete/__snapshots__/delete.e2e.test.ts.snap
@@ -0,0 +1,12 @@
+// Bun Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`delete an answer 1`] = `
+{
+  "content": "I found it ! It's Dune :P",
+  "created_at": 2011-11-12T00:00:00.000Z,
+  "id": "best-film-2011-answer-1",
+  "owner_id": "douglas_student_id",
+  "parent_id": "best-film-2011",
+  "updated_at": 2011-11-12T00:00:00.000Z,
+}
+`;
diff --git a/packages/@1/modules/forum/api/src/answers/delete/delete.e2e.test.ts b/packages/@1/modules/forum/api/src/answers/delete/delete.e2e.test.ts
new file mode 100644
index 000000000..6568aad47
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/answers/delete/delete.e2e.test.ts
@@ -0,0 +1,70 @@
+//
+
+import {
+  create_douglas_student,
+  create_film_category,
+} from "@1.infra/database/seeding";
+import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory, type Session } from "@1.modules/trpc";
+import { afterAll, beforeAll, expect, setSystemTime, test } from "bun:test";
+import delete_quetion from "./delete";
+
+//
+
+beforeAll(empty_database);
+beforeAll(migrate);
+beforeAll(() => {
+  setSystemTime(new Date("2011-11-11"));
+});
+
+//
+
+const auth = () =>
+  ({
+    profile: { id: "douglas_profile_id" },
+  }) as Session;
+
+test("delete an answer", async () => {
+  const caller = createCallerFactory(delete_quetion);
+  const trpc = caller({
+    auth,
+    prisma,
+  } as any);
+  const response = await trpc.delete({
+    answers_id: "best-film-2011-answer-1",
+    question_id: "best-film-2011",
+  });
+  expect(response).toMatchSnapshot();
+});
+
+//
+
+beforeAll(async function seed() {
+  const cinema_category_id = await create_film_category(prisma);
+  const douglas_student_id = await create_douglas_student(prisma);
+
+  await prisma.question.create({
+    data: {
+      id: "best-film-2011",
+      category_id: cinema_category_id,
+      created_at: new Date("2011-11-11"),
+      owner_id: douglas_student_id,
+      title: "What is the best film of 2011 ?",
+      updated_at: new Date("2011-11-11"),
+      answers: {
+        create: {
+          content: "I found it ! It's Dune :P",
+          id: "best-film-2011-answer-1",
+          owner_id: douglas_student_id,
+          updated_at: new Date("2011-11-12"),
+          created_at: new Date("2011-11-12"),
+        },
+      },
+    },
+  });
+});
+
+afterAll(async function empty_delete_entries() {
+  await prisma.category.deleteMany();
+  await prisma.user.deleteMany();
+});
diff --git a/packages/@1/modules/forum/api/src/answers/delete/delete.ts b/packages/@1/modules/forum/api/src/answers/delete/delete.ts
new file mode 100644
index 000000000..70f3d44e6
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/answers/delete/delete.ts
@@ -0,0 +1,27 @@
+//
+
+import { ID_Schema } from "@1.modules/core/domain";
+import { router } from "@1.modules/trpc";
+import { z } from "zod";
+import { protected_answers_procedure } from "../procedure";
+
+//
+
+export default router({
+  delete: protected_answers_procedure
+    .input(z.object({ answers_id: ID_Schema }))
+    .mutation(
+      async ({
+        input: { answers_id, question_id },
+        ctx: { prisma, session },
+      }) => {
+        return prisma.answer.delete({
+          where: {
+            id: answers_id,
+            parent_id: question_id,
+            owner: { profile_id: session.profile.id },
+          },
+        });
+      },
+    ),
+});
diff --git a/packages/@1/modules/forum/api/src/answers/delete/index.ts b/packages/@1/modules/forum/api/src/answers/delete/index.ts
new file mode 100644
index 000000000..b2b8e2bf6
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/answers/delete/index.ts
@@ -0,0 +1,3 @@
+//
+
+export { default as delete_api_router } from "./delete";
diff --git a/packages/@1/modules/forum/api/src/answers/procedure.ts b/packages/@1/modules/forum/api/src/answers/procedure.ts
new file mode 100644
index 000000000..3c69934ed
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/answers/procedure.ts
@@ -0,0 +1,10 @@
+import { procedure, session_procedure } from "@1.modules/trpc";
+import { z } from "zod";
+
+export const answers_procedure = procedure.input(
+  z.object({ question_id: z.string() }),
+);
+
+export const protected_answers_procedure = session_procedure.input(
+  z.object({ question_id: z.string() }),
+);
diff --git a/packages/@1/modules/forum/api/src/question.ts b/packages/@1/modules/forum/api/src/question.ts
index 25e48d2e9..61a1d76d8 100644
--- a/packages/@1/modules/forum/api/src/question.ts
+++ b/packages/@1/modules/forum/api/src/question.ts
@@ -1,37 +1,14 @@
 //
 
 import { ID_Schema } from "@1.modules/core/domain";
-import { next_auth_procedure, procedure, router } from "@1.modules/trpc";
-import { z } from "zod";
+import { mergeRouters, procedure, router } from "@1.modules/trpc";
 import { answers_api_router } from "./answers";
-import find from "./question/find";
+import { create_api_router } from "./question/create";
+import { delete_api_router } from "./question/delete";
+import { find_api_router } from "./question/find";
 
 const question_api_router = router({
   answers: answers_api_router,
-  create: next_auth_procedure
-    .input(z.object({ title: z.string(), category: z.string() }))
-    .mutation(async ({ input, ctx: { prisma, payload } }) => {
-      const {
-        profile: { id: profile_id },
-      } = payload;
-      const { title, category } = input;
-
-      return prisma.question.create({
-        data: {
-          title,
-          category: { connect: { id: category } },
-          owner: { connect: { profile_id } },
-        },
-      });
-    }),
-
-  delete: next_auth_procedure
-    .input(ID_Schema)
-    .mutation(async ({ input: id, ctx: { prisma, payload } }) => {
-      return prisma.question.delete({
-        where: { id, owner: { profile_id: payload.profile.id } },
-      });
-    }),
 
   by_id: procedure
     .input(ID_Schema)
@@ -51,9 +28,12 @@ const question_api_router = router({
         },
       });
     }),
-
-  find: find,
 });
 
-export default question_api_router;
+export default mergeRouters(
+  create_api_router,
+  delete_api_router,
+  find_api_router,
+  question_api_router,
+);
 export type ForumApiRouter = typeof question_api_router;
diff --git a/packages/@1/modules/forum/api/src/question/create/__snapshots__/create.e2e.test.ts.snap b/packages/@1/modules/forum/api/src/question/create/__snapshots__/create.e2e.test.ts.snap
new file mode 100644
index 000000000..83d242aba
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/question/create/__snapshots__/create.e2e.test.ts.snap
@@ -0,0 +1,13 @@
+// Bun Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`return a new question 1`] = `
+{
+  "accepted_answer_id": null,
+  "category_id": "film_category_id",
+  "created_at": Any<Date>,
+  "id": Any<String>,
+  "owner_id": "douglas_student_id",
+  "title": "What is the best film of 2011 ?",
+  "updated_at": Any<Date>,
+}
+`;
diff --git a/packages/@1/modules/forum/api/src/question/create/create.e2e.test.ts b/packages/@1/modules/forum/api/src/question/create/create.e2e.test.ts
new file mode 100644
index 000000000..5f1cbe835
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/question/create/create.e2e.test.ts
@@ -0,0 +1,54 @@
+//
+
+import {
+  create_douglas_student,
+  create_film_category,
+} from "@1.infra/database/seeding";
+import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory, type Session } from "@1.modules/trpc";
+import { afterAll, beforeAll, expect, setSystemTime, test } from "bun:test";
+import create_quetion from "./create";
+
+//
+
+beforeAll(empty_database);
+beforeAll(migrate);
+beforeAll(() => {
+  setSystemTime(new Date("2011-11-11"));
+});
+
+//
+
+const auth = () =>
+  ({
+    profile: { id: "douglas_profile_id" },
+  }) as Session;
+
+test("return a new question", async () => {
+  const caller = createCallerFactory(create_quetion);
+  const trpc = caller({
+    auth,
+    prisma,
+  } as any);
+  const response = await trpc.create({
+    category: "film_category_id",
+    title: "What is the best film of 2011 ?",
+  });
+  expect(response).toMatchSnapshot({
+    id: expect.any(String),
+    created_at: expect.any(Date),
+    updated_at: expect.any(Date),
+  });
+});
+
+//
+
+beforeAll(async function seed() {
+  await create_film_category(prisma);
+  await create_douglas_student(prisma);
+});
+
+afterAll(async function empty_delete_entries() {
+  await prisma.category.deleteMany();
+  await prisma.user.deleteMany();
+});
diff --git a/packages/@1/modules/forum/api/src/question/create/create.ts b/packages/@1/modules/forum/api/src/question/create/create.ts
new file mode 100644
index 000000000..ae23dc5b0
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/question/create/create.ts
@@ -0,0 +1,23 @@
+//
+
+import { router, session_procedure } from "@1.modules/trpc";
+import { z } from "zod";
+
+export default router({
+  create: session_procedure
+    .input(z.object({ title: z.string(), category: z.string() }))
+    .mutation(async ({ input, ctx: { prisma, session } }) => {
+      const {
+        profile: { id: profile_id },
+      } = session;
+      const { title, category } = input;
+
+      return prisma.question.create({
+        data: {
+          title,
+          category: { connect: { id: category } },
+          owner: { connect: { profile_id } },
+        },
+      });
+    }),
+});
diff --git a/packages/@1/modules/forum/api/src/question/create/index.ts b/packages/@1/modules/forum/api/src/question/create/index.ts
new file mode 100644
index 000000000..a577c36fc
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/question/create/index.ts
@@ -0,0 +1,3 @@
+//
+
+export { default as create_api_router } from "./create";
diff --git a/packages/@1/modules/forum/api/src/question/delete/__snapshots__/delete.e2e.test.ts.snap b/packages/@1/modules/forum/api/src/question/delete/__snapshots__/delete.e2e.test.ts.snap
new file mode 100644
index 000000000..387483be4
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/question/delete/__snapshots__/delete.e2e.test.ts.snap
@@ -0,0 +1,13 @@
+// Bun Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`delete a question 1`] = `
+{
+  "accepted_answer_id": null,
+  "category_id": "film_category_id",
+  "created_at": 2011-11-11T00:00:00.000Z,
+  "id": "best-film-2011",
+  "owner_id": "douglas_student_id",
+  "title": "What is the best film of 2011 ?",
+  "updated_at": 2011-11-11T00:00:00.000Z,
+}
+`;
diff --git a/packages/@1/modules/forum/api/src/question/delete/delete.e2e.test.ts b/packages/@1/modules/forum/api/src/question/delete/delete.e2e.test.ts
new file mode 100644
index 000000000..635751856
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/question/delete/delete.e2e.test.ts
@@ -0,0 +1,60 @@
+//
+
+import {
+  create_douglas_student,
+  create_film_category,
+} from "@1.infra/database/seeding";
+import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory, type Session } from "@1.modules/trpc";
+import { afterAll, beforeAll, expect, setSystemTime, test } from "bun:test";
+import delete_quetion from "./delete";
+
+//
+
+beforeAll(empty_database);
+beforeAll(migrate);
+beforeAll(() => {
+  setSystemTime(new Date("2011-11-11"));
+});
+
+//
+
+const auth = () =>
+  ({
+    profile: { id: "douglas_profile_id" },
+  }) as Session;
+
+test("delete a question", async () => {
+  const caller = createCallerFactory(delete_quetion);
+  const trpc = caller({
+    auth,
+    prisma,
+  } as any);
+  const response = await trpc.delete("best-film-2011");
+  expect(response).toMatchSnapshot();
+});
+
+//
+
+beforeAll(async function seed() {
+  const cinema_category_id = await create_film_category(prisma);
+  const douglas_student_id = await create_douglas_student(prisma);
+
+  await prisma.question.createMany({
+    data: [
+      {
+        id: "best-film-2011",
+        category_id: cinema_category_id,
+        created_at: new Date("2011-11-11"),
+        owner_id: douglas_student_id,
+        title: "What is the best film of 2011 ?",
+        updated_at: new Date("2011-11-11"),
+      },
+    ],
+  });
+});
+
+afterAll(async function empty_delete_entries() {
+  await prisma.user.deleteMany();
+  await prisma.category.deleteMany();
+});
diff --git a/packages/@1/modules/forum/api/src/question/delete/delete.ts b/packages/@1/modules/forum/api/src/question/delete/delete.ts
new file mode 100644
index 000000000..222fb8c17
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/question/delete/delete.ts
@@ -0,0 +1,16 @@
+//
+
+import { ID_Schema } from "@1.modules/core/domain";
+import { router, session_procedure } from "@1.modules/trpc";
+
+//
+
+export default router({
+  delete: session_procedure
+    .input(ID_Schema)
+    .mutation(async ({ input: id, ctx: { prisma, session } }) => {
+      return prisma.question.delete({
+        where: { id, owner: { profile_id: session.profile.id } },
+      });
+    }),
+});
diff --git a/packages/@1/modules/forum/api/src/question/delete/index.ts b/packages/@1/modules/forum/api/src/question/delete/index.ts
new file mode 100644
index 000000000..b2b8e2bf6
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/question/delete/index.ts
@@ -0,0 +1,3 @@
+//
+
+export { default as delete_api_router } from "./delete";
diff --git a/packages/@1/modules/forum/api/src/question/find/__snapshots__/find.e2e.test.ts.snap b/packages/@1/modules/forum/api/src/question/find/__snapshots__/find.e2e.test.ts.snap
new file mode 100644
index 000000000..268eb67c6
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/question/find/__snapshots__/find.e2e.test.ts.snap
@@ -0,0 +1,209 @@
+// Bun Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`visitor find all latest questions 1`] = `
+{
+  "data": [
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-11T00:00:00.000Z,
+      "id": "best-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the best film of 2011 ?",
+      "updated_at": 2011-11-11T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "popular-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the most popular film of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "best-actor-2011",
+      "owner_id": "johan_student_id",
+      "title": "How is the best actor of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+  ],
+  "next_cursor": undefined,
+}
+`;
+
+exports[`visitor search for douglas' questions 1`] = `
+{
+  "data": [
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-11T00:00:00.000Z,
+      "id": "best-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the best film of 2011 ?",
+      "updated_at": 2011-11-11T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "popular-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the most popular film of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+  ],
+  "next_cursor": undefined,
+}
+`;
+
+exports[`visitor search for 'best actor' questions 1`] = `
+{
+  "data": [],
+  "next_cursor": undefined,
+}
+`;
+
+exports[`connected studient find all latest questions 1`] = `
+{
+  "data": [
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-11T00:00:00.000Z,
+      "id": "best-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the best film of 2011 ?",
+      "updated_at": 2011-11-11T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "popular-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the most popular film of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "best-actor-2011",
+      "owner_id": "johan_student_id",
+      "title": "How is the best actor of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+  ],
+  "next_cursor": undefined,
+}
+`;
+
+exports[`connected studient list my questions 1`] = `
+{
+  "data": [
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-11T00:00:00.000Z,
+      "id": "best-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the best film of 2011 ?",
+      "updated_at": 2011-11-11T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "popular-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the most popular film of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "best-actor-2011",
+      "owner_id": "johan_student_id",
+      "title": "How is the best actor of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+  ],
+  "next_cursor": undefined,
+}
+`;
+
+exports[`connected studient should not list questions created by profile I blocked 1`] = `
+{
+  "data": [
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-11T00:00:00.000Z,
+      "id": "best-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the best film of 2011 ?",
+      "updated_at": 2011-11-11T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "popular-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the most popular film of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "best-actor-2011",
+      "owner_id": "johan_student_id",
+      "title": "How is the best actor of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+  ],
+  "next_cursor": undefined,
+}
+`;
+
+exports[`connected studient should not list questions created by profiles who blocked me 1`] = `
+{
+  "data": [
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-11T00:00:00.000Z,
+      "id": "best-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the best film of 2011 ?",
+      "updated_at": 2011-11-11T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "popular-film-2011",
+      "owner_id": "douglas_student_id",
+      "title": "What is the most popular film of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+    {
+      "accepted_answer_id": null,
+      "category_id": "film_category_id",
+      "created_at": 2011-11-10T00:00:00.000Z,
+      "id": "best-actor-2011",
+      "owner_id": "johan_student_id",
+      "title": "How is the best actor of 2011 ?",
+      "updated_at": 2011-11-10T00:00:00.000Z,
+    },
+  ],
+  "next_cursor": undefined,
+}
+`;
diff --git a/packages/@1/modules/forum/api/src/question/find/index.e2e.test.ts b/packages/@1/modules/forum/api/src/question/find/find.e2e.test.ts
similarity index 57%
rename from packages/@1/modules/forum/api/src/question/find/index.e2e.test.ts
rename to packages/@1/modules/forum/api/src/question/find/find.e2e.test.ts
index f22091016..dcba0d9ac 100644
--- a/packages/@1/modules/forum/api/src/question/find/index.e2e.test.ts
+++ b/packages/@1/modules/forum/api/src/question/find/find.e2e.test.ts
@@ -6,21 +6,19 @@ import {
   create_johan_student,
 } from "@1.infra/database/seeding";
 import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory, type Session } from "@1.modules/trpc";
 import {
-  create_nextauth_header,
-  createCallerFactory,
-  router,
-} from "@1.modules/trpc";
-import { NEXTAUTH_SECRET } from "@1.modules/trpc/testing";
-import { beforeAll, describe, expect, setSystemTime, test } from "bun:test";
-import find_quetions from "./index";
+  afterAll,
+  beforeAll,
+  describe,
+  expect,
+  setSystemTime,
+  test,
+} from "bun:test";
+import find_quetions from "./find";
 
 //
 
-beforeAll(() => {
-  process.env["NEXTAUTH_SECRET"] = NEXTAUTH_SECRET;
-});
-
 beforeAll(empty_database);
 beforeAll(migrate);
 beforeAll(() => {
@@ -31,79 +29,60 @@ beforeAll(() => {
 
 describe("visitor", () => {
   test("find all latest questions", async () => {
-    const caller = createCallerFactory(
-      router({
-        find: find_quetions,
-      }),
-    );
+    const caller = createCallerFactory(find_quetions);
     const trpc = caller({
+      auth: () => null,
       prisma,
     } as any);
-    const questions = await trpc.find({});
-    expect(questions).toMatchSnapshot();
+    const response = await trpc.find({});
+    expect(response).toMatchSnapshot();
   });
 
   test("search for douglas' questions", async () => {
-    const caller = createCallerFactory(
-      router({
-        find: find_quetions,
-      }),
-    );
+    const caller = createCallerFactory(find_quetions);
     const trpc = caller({
+      auth: () => null,
       prisma,
     } as any);
-    const questions = await trpc.find({
+    const response = await trpc.find({
       search: "douglas",
     });
-    expect(questions).toMatchSnapshot();
+    expect(response).toMatchSnapshot();
   });
 
   test("search for 'best actor' questions", async () => {
-    const caller = createCallerFactory(
-      router({
-        find: find_quetions,
-      }),
-    );
+    const caller = createCallerFactory(find_quetions);
     const trpc = caller({
+      auth: () => null,
       prisma,
     } as any);
-    const questions = await trpc.find({
+    const response = await trpc.find({
       search: "meilleur acteur",
     });
-    expect(questions).toMatchSnapshot();
+    expect(response).toMatchSnapshot();
   });
 });
 
 describe("connected studient", async () => {
-  const nextauth_header = await create_nextauth_header({
-    secret: "🔑",
-    token: {
-      profile: { id: "johan_profile_id", role: "STUDENT", image: "", name: "" },
-    },
-  });
+  const auth = () =>
+    ({
+      user: { email: "douglas@example.com" },
+    }) as Session;
 
   test("find all latest questions", async () => {
-    const caller = createCallerFactory(
-      router({
-        find: find_quetions,
-      }),
-    );
+    const caller = createCallerFactory(find_quetions);
     const trpc = caller({
-      headers: { ...nextauth_header },
+      auth,
       prisma,
     } as any);
-    const questions = await trpc.find({});
-    expect(questions).toMatchSnapshot();
+    const response = await trpc.find({});
+    expect(response).toMatchSnapshot();
   });
 
   test("list my questions", async () => {
-    const caller = createCallerFactory(
-      router({
-        find: find_quetions,
-      }),
-    );
+    const caller = createCallerFactory(find_quetions);
     const trpc = caller({
-      headers: { ...nextauth_header },
+      auth,
       prisma,
     } as any);
     const questions = await trpc.find({
@@ -117,17 +96,13 @@ describe("connected studient", async () => {
       data: { blacklist: { create: { profile_id: "douglas_profile_id" } } },
       where: { id: "johan_profile_id" },
     });
-    const caller = createCallerFactory(
-      router({
-        find: find_quetions,
-      }),
-    );
+    const caller = createCallerFactory(find_quetions);
     const trpc = caller({
-      headers: { ...nextauth_header },
+      auth,
       prisma,
     } as any);
-    const questions = await trpc.find({});
-    expect(questions).toMatchSnapshot();
+    const response = await trpc.find({});
+    expect(response).toMatchSnapshot();
   });
 
   test("should not list questions created by profiles who blocked me", async () => {
@@ -135,17 +110,13 @@ describe("connected studient", async () => {
       data: { blacklisted_by: { create: { owner_id: "douglas_profile_id" } } },
       where: { id: "johan_profile_id" },
     });
-    const caller = createCallerFactory(
-      router({
-        find: find_quetions,
-      }),
-    );
+    const caller = createCallerFactory(find_quetions);
     const trpc = caller({
-      headers: { ...nextauth_header },
+      auth,
       prisma,
     } as any);
-    const questions = await trpc.find({});
-    expect(questions).toMatchSnapshot();
+    const response = await trpc.find({});
+    expect(response).toMatchSnapshot();
   });
 });
 
@@ -153,7 +124,7 @@ describe("connected studient", async () => {
 
 beforeAll(async function seed() {
   const cinema_category_id = await create_film_category(prisma);
-  const douglas_studient_id = await create_douglas_student(prisma);
+  const douglas_student_id = await create_douglas_student(prisma);
 
   const johan_studient_id = await create_johan_student(prisma);
 
@@ -165,7 +136,7 @@ beforeAll(async function seed() {
         id: "best-film-2011",
         category_id: cinema_category_id,
         created_at: new Date("2011-11-11"),
-        owner_id: douglas_studient_id,
+        owner_id: douglas_student_id,
         title: "What is the best film of 2011 ?",
         updated_at: new Date("2011-11-11"),
       },
@@ -173,7 +144,7 @@ beforeAll(async function seed() {
         id: "popular-film-2011",
         category_id: cinema_category_id,
         created_at: new Date("2011-11-10"),
-        owner_id: douglas_studient_id,
+        owner_id: douglas_student_id,
         title: "What is the most popular film of 2011 ?",
         updated_at: new Date("2011-11-10"),
       },
@@ -188,3 +159,8 @@ beforeAll(async function seed() {
     ],
   });
 });
+
+afterAll(async function empty_delete_entries() {
+  await prisma.category.deleteMany();
+  await prisma.user.deleteMany();
+});
diff --git a/packages/@1/modules/forum/api/src/question/find/find.ts b/packages/@1/modules/forum/api/src/question/find/find.ts
new file mode 100644
index 000000000..52edfa318
--- /dev/null
+++ b/packages/@1/modules/forum/api/src/question/find/find.ts
@@ -0,0 +1,142 @@
+//
+
+import type { Prisma } from "@1.infra/database";
+import { Forum_Filter } from "@1.modules/forum.domain";
+import {
+  maybe_session_procedure,
+  router,
+  with_next_cursor,
+} from "@1.modules/trpc";
+import { match, P } from "ts-pattern";
+import { z } from "zod";
+
+//
+
+const where_category_input = (category: string | undefined) =>
+  match(category)
+    .with(
+      P.string,
+      (value): Prisma.QuestionWhereInput => ({
+        category: { slug: value },
+      }),
+    )
+    .otherwise(() => ({}));
+
+const where_filter_input = (
+  filter: z.infer<typeof Forum_Filter>,
+  profile_id?: string | undefined,
+) =>
+  match({ filter, profile_id })
+    .with(
+      { filter: Forum_Filter.Enum.ALL },
+      { filter: Forum_Filter.Enum.MINE, profile_id: undefined },
+      (): Prisma.QuestionWhereInput => ({}),
+    )
+    .with(
+      { filter: Forum_Filter.Enum.APPROVED },
+      (): Prisma.QuestionWhereInput => ({
+        NOT: { accepted_answer_id: null },
+      }),
+    )
+    .with(
+      { filter: Forum_Filter.Enum.AWNSERED },
+      (): Prisma.QuestionWhereInput => ({
+        NOT: [{ answers: { none: {} } }],
+      }),
+    )
+    .with(
+      { filter: Forum_Filter.Enum.LAST_QUESTIONS },
+      (): Prisma.QuestionWhereInput => ({}),
+    )
+    .with(
+      { filter: Forum_Filter.Enum.MINE, profile_id: P.string },
+      ({ profile_id }): Prisma.QuestionWhereInput => ({
+        owner: { profile_id },
+      }),
+    )
+    .with(
+      { filter: Forum_Filter.Enum.NOT_APPROVED },
+      (): Prisma.QuestionWhereInput => ({
+        accepted_answer_id: null,
+      }),
+    )
+    .exhaustive();
+
+const where_not_in_profile_blacklist_input = (profile_id: string | undefined) =>
+  match(profile_id)
+    .with(
+      P.string,
+      (value): Prisma.QuestionWhereInput => ({
+        AND: [
+          {
+            owner: { profile: { blacklist: { none: { profile_id: value } } } },
+          },
+          {
+            owner: {
+              profile: { blacklisted_by: { none: { owner_id: value } } },
+            },
+          },
+        ],
+      }),
+    )
+    .otherwise(() => ({}));
+
+const where_search_input = (search: string | undefined) =>
+  match(search)
+    .with(
+      P.string,
+      (value): Prisma.QuestionWhereInput => ({
+        OR: [
+          {
+            owner: {
+              profile: {
+                name: { contains: value, mode: "insensitive" },
+              },
+            },
+          },
+          { title: { contains: value, mode: "insensitive" } },
+        ],
+      }),
+    )
+    .otherwise(() => ({}));
+
+//
+
+const input_schema = z.object({
+  category: z.string().optional(),
+  cursor: z.string().optional(),
+  filter: Forum_Filter.default(Forum_Filter.Enum.ALL),
+  limit: z.number().min(1).max(10).default(10),
+  search: z.string().optional(),
+});
+
+export default router({
+  find: maybe_session_procedure
+    .input(input_schema)
+    .query(async ({ input, ctx: { session, prisma } }) => {
+      const profile_id = session?.profile?.id;
+      const { category, cursor, limit, search, filter } = input;
+
+      const where_category = where_category_input(category);
+      const where_filter = where_filter_input(filter, profile_id);
+      const where_not_in_profile_blacklist =
+        where_not_in_profile_blacklist_input(profile_id);
+      const where_search = where_search_input(search);
+
+      const items = await prisma.question.findMany({
+        ...(cursor ? { cursor: { id: cursor } } : {}),
+        orderBy: { created_at: "desc" },
+        take: limit + 1,
+        where: {
+          AND: [
+            where_category,
+            where_filter,
+            where_not_in_profile_blacklist,
+            where_search,
+          ],
+        },
+      });
+
+      return with_next_cursor(limit, items)((item) => item.id);
+    }),
+});
diff --git a/packages/@1/modules/forum/api/src/question/find/index.ts b/packages/@1/modules/forum/api/src/question/find/index.ts
index 665f6a5fd..554151cdf 100644
--- a/packages/@1/modules/forum/api/src/question/find/index.ts
+++ b/packages/@1/modules/forum/api/src/question/find/index.ts
@@ -1,136 +1,3 @@
 //
 
-import type { Prisma } from "@1.infra/database";
-import { Forum_Filter } from "@1.modules/forum.domain";
-import { maybe_next_auth_procedure, with_next_cursor } from "@1.modules/trpc";
-import { match, P } from "ts-pattern";
-import { z } from "zod";
-
-//
-
-const where_category_input = (category: string | undefined) =>
-  match(category)
-    .with(
-      P.string,
-      (value): Prisma.QuestionWhereInput => ({
-        category: { slug: value },
-      }),
-    )
-    .otherwise(() => ({}));
-
-const where_filter_input = (
-  filter: z.infer<typeof Forum_Filter>,
-  profile_id?: string | undefined,
-) =>
-  match({ filter, profile_id })
-    .with(
-      { filter: Forum_Filter.Enum.ALL },
-      { filter: Forum_Filter.Enum.MINE, profile_id: undefined },
-      (): Prisma.QuestionWhereInput => ({}),
-    )
-    .with(
-      { filter: Forum_Filter.Enum.APPROVED },
-      (): Prisma.QuestionWhereInput => ({
-        NOT: { accepted_answer_id: null },
-      }),
-    )
-    .with(
-      { filter: Forum_Filter.Enum.AWNSERED },
-      (): Prisma.QuestionWhereInput => ({
-        NOT: [{ answers: { none: {} } }],
-      }),
-    )
-    .with(
-      { filter: Forum_Filter.Enum.LAST_QUESTIONS },
-      (): Prisma.QuestionWhereInput => ({}),
-    )
-    .with(
-      { filter: Forum_Filter.Enum.MINE, profile_id: P.string },
-      ({ profile_id }): Prisma.QuestionWhereInput => ({
-        owner: { profile_id },
-      }),
-    )
-    .with(
-      { filter: Forum_Filter.Enum.NOT_APPROVED },
-      (): Prisma.QuestionWhereInput => ({
-        accepted_answer_id: null,
-      }),
-    )
-    .exhaustive();
-
-const where_not_in_profile_blacklist_input = (profile_id: string | undefined) =>
-  match(profile_id)
-    .with(
-      P.string,
-      (value): Prisma.QuestionWhereInput => ({
-        AND: [
-          {
-            owner: { profile: { blacklist: { none: { profile_id: value } } } },
-          },
-          {
-            owner: {
-              profile: { blacklisted_by: { none: { owner_id: value } } },
-            },
-          },
-        ],
-      }),
-    )
-    .otherwise(() => ({}));
-
-const where_search_input = (search: string | undefined) =>
-  match(search)
-    .with(
-      P.string,
-      (value): Prisma.QuestionWhereInput => ({
-        OR: [
-          {
-            owner: {
-              profile: {
-                name: { contains: value, mode: "insensitive" },
-              },
-            },
-          },
-          { title: { contains: value, mode: "insensitive" } },
-        ],
-      }),
-    )
-    .otherwise(() => ({}));
-
-//
-
-const input_schema = z.object({
-  category: z.string().optional(),
-  cursor: z.string().optional(),
-  filter: Forum_Filter.default(Forum_Filter.Enum.ALL),
-  limit: z.number().min(1).max(10).default(10),
-  search: z.string().optional(),
-});
-
-export default maybe_next_auth_procedure
-  .input(input_schema)
-  .query(async ({ input, ctx: { payload, prisma } }) => {
-    const profile_id = payload.profile?.id;
-    const { category, cursor, limit, search, filter } = input;
-
-    const where_category = where_category_input(category);
-    const where_filter = where_filter_input(filter, profile_id);
-    const where_not_in_profile_blacklist =
-      where_not_in_profile_blacklist_input(profile_id);
-    const where_search = where_search_input(search);
-
-    const items = await prisma.question.findMany({
-      ...(cursor ? { cursor: { id: cursor } } : {}),
-      orderBy: { created_at: "desc" },
-      take: limit + 1,
-      where: {
-        AND: [
-          where_category,
-          where_filter,
-          where_not_in_profile_blacklist,
-          where_search,
-        ],
-      },
-    });
-
-    return with_next_cursor(limit, items)((item) => item.id);
-  });
+export { default as find_api_router } from "./find";
diff --git a/packages/@1/modules/forum/domain/src/index.ts b/packages/@1/modules/forum/domain/src/index.ts
index b3fcbe240..12762ecd1 100644
--- a/packages/@1/modules/forum/domain/src/index.ts
+++ b/packages/@1/modules/forum/domain/src/index.ts
@@ -1,6 +1,10 @@
 //
 
-import { Entity_Schema, Entity_Timestamps } from "@1.modules/core/domain";
+import {
+  Entity_Schema,
+  Entity_Timestamps,
+  ID_Schema,
+} from "@1.modules/core/domain";
 import { Profile_Schema, Student_Schema } from "@1.modules/profile.domain";
 import { z } from "zod";
 
@@ -24,10 +28,11 @@ export interface Question extends z.TypeOf<typeof Question_Schema> {}
 export const Answer_Schema = Entity_Schema.merge(Entity_Timestamps)
   .extend({
     accepted_for: Entity_Schema.nullable(),
+    content: z.string(),
     owner: Student_Schema.pick({ id: true, university: true }).extend({
       profile: Profile_Schema.pick({ id: true, name: true, image: true }),
     }),
-    content: z.string(),
+    parent_id: ID_Schema,
   })
   .describe("Answer_PropsSchema");
 
diff --git a/packages/@1/modules/opportunity/ui/src/Card.tsx b/packages/@1/modules/opportunity/ui/src/Card.tsx
index 7ea0e88d2..65c7073e1 100644
--- a/packages/@1/modules/opportunity/ui/src/Card.tsx
+++ b/packages/@1/modules/opportunity/ui/src/Card.tsx
@@ -16,6 +16,7 @@ export function Opoortunity_Card({
 }: PropsWithChildren<{ opportunity: CardOportunity }>) {
   const { cover, expiry_date, title, owner, location, category } = opportunity;
   const { base, date } = opoortunity_card();
+
   return (
     <article className={base()}>
       <figure className="flex h-full flex-col">
diff --git a/packages/@1/modules/profile/api/src/find_by_id/__snapshots__/find_by_id.e2e.test.ts.snap b/packages/@1/modules/profile/api/src/find_by_id/__snapshots__/find_by_id.e2e.test.ts.snap
new file mode 100644
index 000000000..3ecd8ddaa
--- /dev/null
+++ b/packages/@1/modules/profile/api/src/find_by_id/__snapshots__/find_by_id.e2e.test.ts.snap
@@ -0,0 +1,17 @@
+// Bun Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`should return profile info to connected users 1`] = `
+{
+  "bio": null,
+  "contacts": [],
+  "created_at": 2011-11-11T00:00:00.000Z,
+  "id": "johan_profile_id",
+  "image": "https://picsum.photos/200/300",
+  "in_contact_with": [],
+  "is_online": false,
+  "name": "Johan",
+  "role": "STUDENT",
+  "updated_at": 2011-11-11T00:00:00.000Z,
+  "user_id": "johan_user_id",
+}
+`;
diff --git a/packages/@1/modules/profile/api/src/find_by_id/find_by_id.e2e.test.ts b/packages/@1/modules/profile/api/src/find_by_id/find_by_id.e2e.test.ts
new file mode 100644
index 000000000..c8706aca5
--- /dev/null
+++ b/packages/@1/modules/profile/api/src/find_by_id/find_by_id.e2e.test.ts
@@ -0,0 +1,73 @@
+//
+
+import {
+  create_douglas_student,
+  create_joedart_student,
+  create_johan_student,
+} from "@1.infra/database/seeding";
+import prisma, { empty_database, migrate } from "@1.infra/database/testing";
+import { createCallerFactory } from "@1.modules/trpc";
+import { douglas_student_session } from "@1.modules/trpc/testing";
+import {
+  afterEach,
+  beforeAll,
+  beforeEach,
+  expect,
+  setSystemTime,
+  test,
+} from "bun:test";
+import find_by_id_api_router from "./find_by_id";
+
+//
+
+beforeAll(empty_database);
+beforeAll(migrate);
+beforeAll(() => {
+  setSystemTime(new Date("2011-11-11"));
+});
+
+//
+
+test("should return profile info to connected users", async () => {
+  const caller = createCallerFactory(find_by_id_api_router);
+  const trpc = caller({
+    auth: () => douglas_student_session,
+    prisma,
+  } as any);
+  const response = await trpc.by_id("johan_profile_id");
+  expect(response).toMatchSnapshot();
+});
+
+test("❎ do not allow visitors to see profile info", async () => {
+  const caller = createCallerFactory(find_by_id_api_router);
+  const trpc = caller({
+    auth: () => douglas_student_session,
+    prisma,
+  } as any);
+
+  await expect(trpc.by_id("jean_mich_profile_id")).rejects.toThrow();
+});
+
+test("❎ do not allow visitors to see profile info", async () => {
+  const caller = createCallerFactory(find_by_id_api_router);
+  const trpc = caller({
+    auth: () => null,
+    prisma,
+  } as any);
+
+  await expect(trpc.by_id("slap_exchange_id")).rejects.toThrowError(
+    "No profile",
+  );
+});
+
+//
+
+beforeEach(async function seed() {
+  await create_douglas_student(prisma);
+  await create_johan_student(prisma);
+  await create_joedart_student(prisma);
+});
+
+afterEach(async function empty_delete_entries() {
+  await prisma.user.deleteMany({});
+});
diff --git a/packages/@1/modules/profile/api/src/find_by_id/find_by_id.ts b/packages/@1/modules/profile/api/src/find_by_id/find_by_id.ts
new file mode 100644
index 000000000..9b51ad775
--- /dev/null
+++ b/packages/@1/modules/profile/api/src/find_by_id/find_by_id.ts
@@ -0,0 +1,29 @@
+//
+
+import { startSpan } from "@1.modules/core/telemetry";
+import { router, session_procedure } from "@1.modules/trpc";
+import { z } from "zod";
+
+//
+
+export default router({
+  by_id: session_procedure
+    .input(z.string())
+    .query(({ input: id, ctx: { prisma } }) => {
+      return startSpan(
+        {
+          name: `prisma.profile.findFirstOrThrow(${id})`,
+          op: "prisma",
+        },
+        function findFirstOrThrow() {
+          return prisma.profile.findUniqueOrThrow({
+            include: {
+              in_contact_with: { select: { id: true } },
+              contacts: { select: { id: true } },
+            },
+            where: { id },
+          });
+        },
+      );
+    }),
+});
diff --git a/packages/@1/modules/profile/api/src/find_by_id/index.ts b/packages/@1/modules/profile/api/src/find_by_id/index.ts
new file mode 100644
index 000000000..f3199ea71
--- /dev/null
+++ b/packages/@1/modules/profile/api/src/find_by_id/index.ts
@@ -0,0 +1,3 @@
+//
+
+export { default as find_by_id_api_router } from "./find_by_id";
diff --git a/packages/@1/modules/profile/api/src/index.ts b/packages/@1/modules/profile/api/src/index.ts
index 5b7c3e197..074519c4b 100644
--- a/packages/@1/modules/profile/api/src/index.ts
+++ b/packages/@1/modules/profile/api/src/index.ts
@@ -1,63 +1,8 @@
 //
 
-import { startSpan } from "@1.modules/core/telemetry";
-import { Profile_Schema, type Profile } from "@1.modules/profile.domain";
-import { next_auth_procedure, router } from "@1.modules/trpc";
-import { z } from "zod";
-import { me } from "./me";
-import { partner_api_router } from "./partner";
-import { student_api_router } from "./student";
+import { mergeRouters } from "@1.modules/trpc";
+import { find_by_id_api_router } from "./find_by_id";
 
-const profile_api_router = router({
-  by_email: next_auth_procedure
-    .input(z.string())
-    .query(async ({ input: email, ctx: { prisma } }) => {
-      return Profile_Schema.parse(
-        await prisma.profile.findFirstOrThrow({ where: { user: { email } } }),
-        { path: ["<by_email>.prisma.profile.findFirstOrThrow"] },
-      ) as Profile;
-    }),
-
-  //
-
-  by_id: next_auth_procedure
-    .input(z.string())
-    .query(({ input: id, ctx: { prisma } }) => {
-      return startSpan(
-        {
-          name: `prisma.profile.findFirstOrThrow(${id})`,
-          op: "prisma",
-        },
-        function findFirstOrThrow() {
-          return prisma.profile.findUniqueOrThrow({
-            include: {
-              in_contact_with: { select: { id: true } },
-              contacts: { select: { id: true } },
-            },
-            where: { id },
-          });
-        },
-      );
-    }),
-
-  //
-
-  /**
-   * @deprecated use flatten style
-   */
-  student: student_api_router,
-
-  //
-
-  /**
-   * @deprecated use flatten style
-   */
-  partner: partner_api_router,
-
-  //
-
-  me: me,
-});
+//
 
-export default profile_api_router;
-export type ProfileApiRouter = typeof profile_api_router;
+export default mergeRouters(find_by_id_api_router);
diff --git a/packages/@1/modules/profile/api/src/legacy.ts b/packages/@1/modules/profile/api/src/legacy.ts
new file mode 100644
index 000000000..5b7c3e197
--- /dev/null
+++ b/packages/@1/modules/profile/api/src/legacy.ts
@@ -0,0 +1,63 @@
+//
+
+import { startSpan } from "@1.modules/core/telemetry";
+import { Profile_Schema, type Profile } from "@1.modules/profile.domain";
+import { next_auth_procedure, router } from "@1.modules/trpc";
+import { z } from "zod";
+import { me } from "./me";
+import { partner_api_router } from "./partner";
+import { student_api_router } from "./student";
+
+const profile_api_router = router({
+  by_email: next_auth_procedure
+    .input(z.string())
+    .query(async ({ input: email, ctx: { prisma } }) => {
+      return Profile_Schema.parse(
+        await prisma.profile.findFirstOrThrow({ where: { user: { email } } }),
+        { path: ["<by_email>.prisma.profile.findFirstOrThrow"] },
+      ) as Profile;
+    }),
+
+  //
+
+  by_id: next_auth_procedure
+    .input(z.string())
+    .query(({ input: id, ctx: { prisma } }) => {
+      return startSpan(
+        {
+          name: `prisma.profile.findFirstOrThrow(${id})`,
+          op: "prisma",
+        },
+        function findFirstOrThrow() {
+          return prisma.profile.findUniqueOrThrow({
+            include: {
+              in_contact_with: { select: { id: true } },
+              contacts: { select: { id: true } },
+            },
+            where: { id },
+          });
+        },
+      );
+    }),
+
+  //
+
+  /**
+   * @deprecated use flatten style
+   */
+  student: student_api_router,
+
+  //
+
+  /**
+   * @deprecated use flatten style
+   */
+  partner: partner_api_router,
+
+  //
+
+  me: me,
+});
+
+export default profile_api_router;
+export type ProfileApiRouter = typeof profile_api_router;
diff --git a/packages/@1/modules/trpc/src/index.ts b/packages/@1/modules/trpc/src/index.ts
index 1ed6a8d2d..00706d353 100644
--- a/packages/@1/modules/trpc/src/index.ts
+++ b/packages/@1/modules/trpc/src/index.ts
@@ -5,6 +5,7 @@ import { type ProcedureBuilder, type ProcedureParams } from "@trpc/server";
 
 //
 
+export type { Session } from "@1.modules/auth.next";
 export { TRPCError } from "@trpc/server";
 export { observable } from "@trpc/server/observable";
 export type { Context } from "./context";
diff --git a/packages/@1/ui/react/src/avatar/atom.ts b/packages/@1/ui/react/src/avatar/atom.ts
index 585e166b4..570c06e46 100644
--- a/packages/@1/ui/react/src/avatar/atom.ts
+++ b/packages/@1/ui/react/src/avatar/atom.ts
@@ -28,6 +28,9 @@ export const avatar_media = tv({
     subtitle: "line-clamp-1 text-sm font-light leading-snug text-gray-500",
   },
   variants: {
+    /**
+     * @deprecated remove the tv$ sign
+     */
     tv$direction: {
       column: {
         figure: "flex-col items-center text-center",
@@ -37,10 +40,20 @@ export const avatar_media = tv({
         figure: "flex-row space-x-2",
       },
     },
+    /**
+     * @deprecated remove the tv$ sign
+     */
     tv$size: {
+      auto: {
+        avatar: "",
+      },
       base: {
         avatar: "size-9",
       },
+      "2xlarge": {
+        avatar: "size-44",
+        title: "text-2xl",
+      },
       medium: {
         avatar: "size-14",
       },
@@ -49,12 +62,18 @@ export const avatar_media = tv({
         title: "text-xs",
       },
     },
+    /**
+     * @deprecated remove the tv$ sign
+     */
     tv$color: {
       secondary: {
         title: "text-secondary",
       },
     },
 
+    /**
+     * @deprecated remove the $ sign
+     */
     $linked: { true: {}, false: {} },
   },
   defaultVariants: {
diff --git a/packages/@1/ui/react/src/avatar/index.tsx b/packages/@1/ui/react/src/avatar/index.tsx
index 235d351ee..35773562b 100644
--- a/packages/@1/ui/react/src/avatar/index.tsx
+++ b/packages/@1/ui/react/src/avatar/index.tsx
@@ -51,6 +51,7 @@ export interface AvatarMediaProps
     AvatarMediaVariantProps {
   image?: string;
   id?: string;
+  variant?: AvatarVariantProps;
 }
 export function AvatarMedia(
   props: PropsWithChildren<AvatarMediaProps & { name: string }>,
@@ -64,6 +65,7 @@ export function AvatarMedia(
     tv$color,
     tv$direction,
     tv$size,
+    variant,
     ...other_props
   } = props;
 
@@ -71,6 +73,7 @@ export function AvatarMedia(
     tv$direction,
     tv$size,
     tv$color,
+    ...variant,
   });
 
   return (
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ca46bd143..f51335994 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -708,6 +708,9 @@ importers:
       '@1.config/typescript':
         specifier: workspace:*
         version: link:../../../config/typescript
+      '@1.infra/database':
+        specifier: workspace:*
+        version: link:../../../infra/database
       '@types/node':
         specifier: 22.10.2
         version: 22.10.2

From e8865b47f432664a90ad2910de7a6dbc9efb2580 Mon Sep 17 00:00:00 2001
From: Douglas DUTEIL <douglasduteil@gmail.com>
Date: Sat, 4 Jan 2025 05:02:21 +0100
Subject: [PATCH 3/3] SAVE

---
 .github/workflows/e2e.yaml                    |  1 +
 apps/e2e/features/exchanges/single.feature    | 13 +++++++++++-
 .../door/[code]/(private)/welcome/page.tsx    |  5 ++---
 apps/www/app/(main)/exchanges/layout.tsx      |  2 +-
 apps/www/widgets/exchanges/card/bookmark.tsx  |  2 ++
 apps/www/widgets/opportunities/card/index.tsx | 10 ++++++++--
 packages/@1/modules/bookmark/api/package.json |  1 +
 .../modules/bookmark/api/src/check/check.ts   | 20 +++++++++++--------
 pnpm-lock.yaml                                |  3 +++
 serkels.code-workspace                        |  1 +
 10 files changed, 43 insertions(+), 15 deletions(-)

diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index 47cf25f48..596942270 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -91,6 +91,7 @@ jobs:
           - partner
           - status
           - studient
+          - studient_exchanges
           - studient_inbox
           - who
 
diff --git a/apps/e2e/features/exchanges/single.feature b/apps/e2e/features/exchanges/single.feature
index 49d8990e5..e24665106 100644
--- a/apps/e2e/features/exchanges/single.feature
+++ b/apps/e2e/features/exchanges/single.feature
@@ -4,11 +4,22 @@ Fonctionnalité: Voir un exchange
   Contexte:
     Soit une base de données nourrie au grain
 
-  Scénario:
+  Scénario: Un visiteur peux vois un échange
     Etant donné que je navigue sur la page
     Quand je clique sur le bouton "Échanges"
     Alors je vois dans le titre "Exchange :: Serkels"
     * je clique sur le bouton "Accepter"
     * je clique sur le champ "Recherche"
     * je tape "Concert de jazz"
+    * je ne vois pas "Bookmark the exchange"
     * je clique sur le bouton "Share the exchange"
+
+  Scénario: Je sauvegarde un échange
+    Etant donné que je navigue sur la page
+    * je me connecte en tant que "douglas@yopmail.com"
+    Quand je clique sur le bouton "Échanges"
+    Alors je vois dans le titre "Exchange :: Serkels"
+    * je clique sur le champ "Recherche"
+    * je tape "Concert de jazz"
+    * je clique sur le bouton "Bookmark the exchange"
+    * je vois "Cet échange est désormais sauvegardé"
diff --git a/apps/www/app/(main)/door/[code]/(private)/welcome/page.tsx b/apps/www/app/(main)/door/[code]/(private)/welcome/page.tsx
index 405103135..1ec1c4cf0 100644
--- a/apps/www/app/(main)/door/[code]/(private)/welcome/page.tsx
+++ b/apps/www/app/(main)/door/[code]/(private)/welcome/page.tsx
@@ -1,9 +1,8 @@
 //
 
-import type { Metadata, ResolvingMetadata } from "next";
-import { Avatar } from "@1.ui/react/avatar";
-import { auth } from "@1.modules/auth.next";
 import { ProfileAvatarMedia } from ":components/avatar";
+import { auth } from "@1.modules/auth.next";
+import type { Metadata, ResolvingMetadata } from "next";
 
 //
 
diff --git a/apps/www/app/(main)/exchanges/layout.tsx b/apps/www/app/(main)/exchanges/layout.tsx
index 47cf92510..acbbc106a 100644
--- a/apps/www/app/(main)/exchanges/layout.tsx
+++ b/apps/www/app/(main)/exchanges/layout.tsx
@@ -26,7 +26,7 @@ export default async function Layout({
 
         <hr className="my-5 md:my-10" />
 
-        {categories}
+        <TrpcRootProvider>{categories}</TrpcRootProvider>
       </AsideFilter>
       <TrpcRootProvider>
         <div className="col-span-full md:col-span-6 md:my-10">{children}</div>
diff --git a/apps/www/widgets/exchanges/card/bookmark.tsx b/apps/www/widgets/exchanges/card/bookmark.tsx
index 4631ebcae..21330bee4 100644
--- a/apps/www/widgets/exchanges/card/bookmark.tsx
+++ b/apps/www/widgets/exchanges/card/bookmark.tsx
@@ -9,6 +9,7 @@ import { PROFILE_ROLES } from "@1.modules/profile.domain";
 import { button } from "@1.ui/react/button/atom";
 import { Bookmark } from "@1.ui/react/icons";
 import { Spinner } from "@1.ui/react/spinner";
+import { VisuallyHidden } from "@1.ui/react/visually_hidden";
 import { sendGAEvent } from "@next/third-parties/google";
 import { toast } from "react-toastify";
 import { tv } from "tailwind-variants";
@@ -82,6 +83,7 @@ function BookmarkItem_Toggle_Mutation(props: BookmarkButton_Props) {
         );
       }}
     >
+      <VisuallyHidden>Bookmark the exchange</VisuallyHidden>
       <Bookmark className={icon()} />
     </button>
   );
diff --git a/apps/www/widgets/opportunities/card/index.tsx b/apps/www/widgets/opportunities/card/index.tsx
index 685de7a49..63883b05c 100644
--- a/apps/www/widgets/opportunities/card/index.tsx
+++ b/apps/www/widgets/opportunities/card/index.tsx
@@ -52,11 +52,17 @@ export function Card({ opportunity }: { opportunity: CardOportunity }) {
 
 function BookmarkItem_Query(props: BookmarkButton_Props) {
   const { target_id, type } = props;
-  const query = TRPC_React.bookmarks.check.useQuery({ target_id, type });
+  const { data: session } = useSession();
+  const is_student = session?.profile.role === PROFILE_ROLES.Enum.STUDENT;
+  const query = trpc_client.bookmarks.check.useQuery(
+    { target_id, type },
+    { enabled: is_student },
+  );
+  if (1) return null;
 
   return match(query)
     .with({ status: "error", error: P.select() }, (error) => {
-      console.error(error);
+      console.error("trpc_client.bookmarks.check", { error });
       return null;
     })
     .with({ status: "loading" }, () => <Spinner className="size-4" />)
diff --git a/packages/@1/modules/bookmark/api/package.json b/packages/@1/modules/bookmark/api/package.json
index 5fcd2909b..e1878e9c5 100644
--- a/packages/@1/modules/bookmark/api/package.json
+++ b/packages/@1/modules/bookmark/api/package.json
@@ -23,6 +23,7 @@
   "dependencies": {
     "@1.modules/bookmark.domain": "workspace:*",
     "@1.modules/trpc": "workspace:*",
+    "await-to-js": "3.0.0",
     "date-fns": "4.1.0",
     "ts-pattern": "5.5.0",
     "zod": "3.23.8"
diff --git a/packages/@1/modules/bookmark/api/src/check/check.ts b/packages/@1/modules/bookmark/api/src/check/check.ts
index e977dea9b..470272916 100644
--- a/packages/@1/modules/bookmark/api/src/check/check.ts
+++ b/packages/@1/modules/bookmark/api/src/check/check.ts
@@ -1,18 +1,20 @@
 //
 
 import { Bookmark_Category } from "@1.modules/bookmark.domain";
-import { router } from "@1.modules/trpc";
+import { maybe_session_procedure, router } from "@1.modules/trpc";
+import { to } from "await-to-js";
 import { match } from "ts-pattern";
 import { z } from "zod";
-import { bookmark_type_procedure } from "../procedure";
 
 //
 
 export default router({
-  check: bookmark_type_procedure
-    .input(z.object({ target_id: z.string() }))
+  check: maybe_session_procedure
+    .input(z.object({ target_id: z.string(), type: Bookmark_Category }))
     .query(async ({ ctx: { prisma, session }, input: { target_id, type } }) => {
-      const { id: owner_id } = session.profile;
+      const { id: owner_id } = session?.profile ?? {};
+
+      if (!owner_id) return false;
 
       const where = match(type)
         .with(Bookmark_Category.Enum.exchange, () => ({
@@ -23,9 +25,11 @@ export default router({
         }))
         .exhaustive();
 
-      const count = await prisma.bookmark.count({
-        where: { owner_id, ...where },
-      });
+      const [, count] = await to(
+        prisma.bookmark.count({
+          where: { owner_id, ...where },
+        }),
+      );
 
       return count === 1;
     }),
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f51335994..07da7c8de 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -695,6 +695,9 @@ importers:
       '@1.modules/trpc':
         specifier: workspace:*
         version: link:../../trpc
+      await-to-js:
+        specifier: 3.0.0
+        version: 3.0.0
       date-fns:
         specifier: 4.1.0
         version: 4.1.0
diff --git a/serkels.code-workspace b/serkels.code-workspace
index 47f4fec35..45d65bd94 100644
--- a/serkels.code-workspace
+++ b/serkels.code-workspace
@@ -194,6 +194,7 @@
         "options": {
           "cwd": "${workspaceFolder:🚀 www}",
           "env": {
+            "NODE_OPTIONS": "--inspect",
             "NODE_ENV": "development",
           },
         },