diff --git a/app/constants/session.ts b/app/constants/session.ts
new file mode 100644
index 0000000..52b84b1
--- /dev/null
+++ b/app/constants/session.ts
@@ -0,0 +1 @@
+export const PREFER_DARK_THEME = 'prefer_dark_theme';
diff --git a/app/controllers/apps_controller.ts b/app/controllers/apps_controller.ts
index 93ff812..cd98c7c 100644
--- a/app/controllers/apps_controller.ts
+++ b/app/controllers/apps_controller.ts
@@ -1,7 +1,17 @@
+import { PREFER_DARK_THEME } from '#constants/session';
+import { updateUserThemeValidator } from '#validators/user_theme';
 import type { HttpContext } from '@adonisjs/core/http';
 
 export default class AppsController {
   index({ inertia }: HttpContext) {
     return inertia.render('home');
   }
+
+  async updateUserTheme({ request, session, response }: HttpContext) {
+    const { preferDarkTheme } = await request.validateUsing(
+      updateUserThemeValidator
+    );
+    session.put(PREFER_DARK_THEME, preferDarkTheme);
+    return response.ok('ok');
+  }
 }
diff --git a/app/validators/user_theme.ts b/app/validators/user_theme.ts
new file mode 100644
index 0000000..9923292
--- /dev/null
+++ b/app/validators/user_theme.ts
@@ -0,0 +1,7 @@
+import vine from '@vinejs/vine';
+
+export const updateUserThemeValidator = vine.compile(
+  vine.object({
+    preferDarkTheme: vine.boolean(),
+  })
+);
diff --git a/config/inertia.ts b/config/inertia.ts
index d79782c..1903819 100644
--- a/config/inertia.ts
+++ b/config/inertia.ts
@@ -1,3 +1,4 @@
+import { PREFER_DARK_THEME } from '#constants/session';
 import { defineConfig } from '@adonisjs/inertia';
 
 export default defineConfig({
@@ -11,6 +12,7 @@ export default defineConfig({
    */
   sharedData: {
     errors: (ctx) => ctx.session?.flashMessages.get('errors'),
+    preferDarkTheme: (ctx) => ctx.session.get(PREFER_DARK_THEME, true),
     auth: async (ctx) => {
       await ctx.auth?.check();
       return {
diff --git a/inertia/components/dashboard/link_list/link_controls.tsx b/inertia/components/dashboard/link_list/link_controls.tsx
index 2be5887..359bfc1 100644
--- a/inertia/components/dashboard/link_list/link_controls.tsx
+++ b/inertia/components/dashboard/link_list/link_controls.tsx
@@ -66,7 +66,6 @@ export default function LinkControls({ link }: { link: Link }) {
       .catch(console.error);
   };
 
-  console.log(link.favorite, link.favorite ? 'oui' : 'non');
   return (
     <Dropdown
       label={<BsThreeDotsVertical css={{ color: theme.colors.grey }} />}
diff --git a/inertia/contexts/dark_theme_context.tsx b/inertia/contexts/dark_theme_context.tsx
index 94e6651..d560f0e 100644
--- a/inertia/contexts/dark_theme_context.tsx
+++ b/inertia/contexts/dark_theme_context.tsx
@@ -1,4 +1,6 @@
+import { usePage } from '@inertiajs/react';
 import { ReactNode, createContext, useEffect, useState } from 'react';
+import { makeRequest } from '~/lib/request';
 
 const LS_KEY = 'dark_theme';
 
@@ -12,18 +14,18 @@ export default function DarkThemeContextProvider({
 }: {
   children: ReactNode;
 }) {
-  const [isDarkTheme, setDarkTheme] = useState<boolean>(() => {
-    if (typeof window === 'undefined' || typeof localStorage === 'undefined')
-      return true;
-
-    const doUserPreferDarkTheme = window?.matchMedia(
-      '(prefers-color-scheme: dark)'
-    ).matches;
-    return (
-      localStorage.getItem(LS_KEY) === 'true' ?? doUserPreferDarkTheme ?? true
-    );
-  });
-  const toggleDarkTheme = (value: boolean) => setDarkTheme(value);
+  const { preferDarkTheme } = usePage<{ preferDarkTheme: boolean }>().props;
+  const [isDarkTheme, setDarkTheme] = useState<boolean>(preferDarkTheme);
+  const toggleDarkTheme = (value: boolean) => {
+    setDarkTheme(value);
+    makeRequest({
+      method: 'POST',
+      url: '/user/theme',
+      body: {
+        preferDarkTheme: value,
+      },
+    });
+  };
 
   useEffect(() => {
     localStorage.setItem(LS_KEY, String(isDarkTheme));
diff --git a/start/routes.ts b/start/routes.ts
index 4b741ad..28d1433 100644
--- a/start/routes.ts
+++ b/start/routes.ts
@@ -10,6 +10,7 @@ const AppsController = () => import('#controllers/apps_controller');
 const FaviconsController = () => import('#controllers/favicons_controller');
 
 router.get(PATHS.HOME, [AppsController, 'index']);
+router.post('/user/theme', [AppsController, 'updateUserTheme']);
 router.get(PATHS.AUTH.LOGIN, [UsersController, 'login']);
 router.get(PATHS.AUTH.GOOGLE, [UsersController, 'google']);
 router.get('/auth/callback', [UsersController, 'callbackAuth']);