From 46f4c1530e2931819deeb9889dea48775de4c3b4 Mon Sep 17 00:00:00 2001
From: Bircck <55695195+Bircck@users.noreply.github.com>
Date: Tue, 6 Oct 2026 16:24:36 +0200
Subject: [PATCH 1/2] fix(website): stop runtime page cache from surviving
 redeployments

Next.js 15.5.27 copies prerendered pages to .next/server/route-cache at runtime and serves that copy before the build's own output. In-place deployments keep these files, so after the next deployment pages reference static chunks that no longer exist and render blank. Disable writing the incremental cache to disk.
---
 Website/next.config.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Website/next.config.ts b/Website/next.config.ts
index 4cda9348..b4094e3e 100644
--- a/Website/next.config.ts
+++ b/Website/next.config.ts
@@ -7,6 +7,11 @@ const nextConfig = {
   turbopack: {
     root: path.join(__dirname, '..'),
   },
+  experimental: {
+    // Deployments overwrite the build in place. Pages cached on disk at runtime
+    // would survive the next deployment and reference static chunks that no longer exist.
+    isrFlushToDisk: false,
+  },
   async headers() {
     return [
       {

From 9b8fc2f03d795fa570d1eb88c48eeb8f9559764d Mon Sep 17 00:00:00 2001
From: Bircck <55695195+Bircck@users.noreply.github.com>
Date: Tue, 6 Oct 2026 16:35:01 +0200
Subject: [PATCH 2/2] fix(website): remove page cache left by earlier
 deployments on startup

Sites already affected keep serving the stale copies even after the cache stops being written. Delete .next/server/route-cache when the Node.js server starts.
---
 Website/instrumentation.ts           | 6 ++++++
 Website/lib/removeStaleRouteCache.ts | 8 ++++++++
 2 files changed, 14 insertions(+)
 create mode 100644 Website/instrumentation.ts
 create mode 100644 Website/lib/removeStaleRouteCache.ts

diff --git a/Website/instrumentation.ts b/Website/instrumentation.ts
new file mode 100644
index 00000000..cd0b14da
--- /dev/null
+++ b/Website/instrumentation.ts
@@ -0,0 +1,6 @@
+export async function register() {
+  if (process.env.NEXT_RUNTIME === 'nodejs') {
+    const { removeStaleRouteCache } = await import('./lib/removeStaleRouteCache');
+    await removeStaleRouteCache();
+  }
+}
diff --git a/Website/lib/removeStaleRouteCache.ts b/Website/lib/removeStaleRouteCache.ts
new file mode 100644
index 00000000..f655bfd9
--- /dev/null
+++ b/Website/lib/removeStaleRouteCache.ts
@@ -0,0 +1,8 @@
+import { rm } from 'fs/promises';
+import path from 'path';
+
+// Pages cached on disk by an earlier deployment take precedence over the current build
+// and reference static chunks that no longer exist. Remove them before serving requests.
+export async function removeStaleRouteCache() {
+  await rm(path.join(process.cwd(), '.next', 'server', 'route-cache'), { recursive: true, force: true });
+}