it mostly works!

src/web/endpoints/front/download.ts

@@ -0,0 +1,28 @@
+import express from "express";
+import { validate } from "../../validate.js";
+import { z } from "zod";
+import { config } from "../../../config.js";
+
+const router = express.Router();
+
+const schema = z.object({
+    query: z.object({
+        id: z.string()
+    })
+});
+
+router.get("/download", async (req, res, next) => {
+    try {
+        const { id } = (await validate(req, schema)).query;
+
+        res.render("download", {
+            title: "download",
+            codecs: config.server.frontend.displayed_codecs,
+            id: id
+        });
+    } catch (err) {
+        next(err);
+    }
+});
+
+export default router;