Typecheck

next.config.ts

@@ -25,6 +25,12 @@ const SECURITY_HEADERS = [
 
 const nextConfig: NextConfig = {
   reactStrictMode: true,
+  // Opt-in only (set by the Dockerfile, see its comment): `next build`
+  // normally runs a full TypeScript check, which on a small server can
+  // need more memory than is free and turn a build into a swap-thrashing
+  // crawl. Left unset everywhere else, so `npm run build` and CI still
+  // fail on a type error.
+  typescript: { ignoreBuildErrors: process.env.SKIP_TYPECHECK === "true" },
   experimental: {
     // Next's Server Action default (1MB) is too small for the PWA
     // icon/splash-screen ZIP import (see updateAppIconSettingsAction's