diff --git a/packages/ui-next/index.html b/packages/ui-next/index.html
index 1d7f9faf7..deacd330d 100644
--- a/packages/ui-next/index.html
+++ b/packages/ui-next/index.html
@@ -5,6 +5,7 @@
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Hydro</title>
+    <!-- __HYDRO_INJECTION__DO_NOT_REMOVE_THIS__ -->
   </head>
   <body>
     <div id="root"></div>
diff --git a/packages/ui-next/index.ts b/packages/ui-next/index.ts
index 9fc34d844..30acceb3c 100644
--- a/packages/ui-next/index.ts
+++ b/packages/ui-next/index.ts
@@ -2,11 +2,13 @@ import fs from 'fs';
 import path from 'path';
 import importMetaUrlPlugin from '@codingame/esbuild-import-meta-url-plugin';
 import react from '@vitejs/plugin-react-swc';
-import c2k from 'koa2-connect';
+import c2k from 'koa2-connect/ts';
 import { createServer } from 'vite';
 import { } from '@hydrooj/framework';
 import { Context } from 'hydrooj';
 
+const INJECT_MARKER = '<!-- __HYDRO_INJECTION__DO_NOT_REMOVE_THIS__ -->';
+
 export async function apply(ctx: Context) {
     if (process.env.HYDRO_CLI) return;
     const vite = await createServer({
@@ -49,7 +51,15 @@ export async function apply(ctx: Context) {
         output: 'html',
         asFallback: false,
         priority: 100,
-        render: async (name, args, context) => await vite.transformIndexHtml(context.handler.context.req.url, html),
+        async render(name, args, context) {
+            const htmlToRender = html.replace(INJECT_MARKER, `<script id="__HYDRO_INJECTION__" type="application/json">${JSON.stringify({
+                HYDRO_INJECTED: true,
+                name,
+                args,
+                url: context.handler.context.req.url,
+            })}</script>`);
+            return await vite.transformIndexHtml(context.handler.context.req.url!, htmlToRender);
+        },
     });
 
     // eslint-disable-next-line consistent-return
diff --git a/packages/ui-next/package.json b/packages/ui-next/package.json
index a517bbfc8..30d7d39b8 100644
--- a/packages/ui-next/package.json
+++ b/packages/ui-next/package.json
@@ -8,14 +8,14 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@vitejs/plugin-react": "^6.0.1",
+    "koa2-connect": "^1.0.2",
     "react": "^19.2.5",
     "react-dom": "^19.2.5"
   },
   "devDependencies": {
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
-    "@vitejs/plugin-react-swc": "^4.3.0",
+    "@vitejs/plugin-react": "^6.0.1",
     "vite": "^8.0.10"
   }
 }