Problem

npm install -g failproofai@0.0.1-beta.3 installs and the server starts, but the dashboard renders as a completely blank page. All /_next/static/* requests return 404.

Root cause

Next.js standalone mode (output: "standalone") does not automatically copy .next/static/ (JS/CSS chunks, fonts, etc.) into the standalone output. The standalone server.js expects static assets at <server.js dir>/.next/static/ = .next/standalone/.next/static/, but that directory was never populated.

This was confirmed via Docker (node:20 --network host): the server started fine but curl returned bare HTML with no script tags.

Fix

package.json — 2 changes:

1. build script — after next build, copy static assets into the standalone dir:

   cpSync('.next/static', '.next/standalone/.next/static', {recursive: true})
   

2. prepare replaces prepublishOnly — prepublishOnly only fires during npm publish. Using prepare also covers npm pack and local npm install, so testing with a local tarball or npm install -g . now works correctly without manually running bun run build first.

Verification

Docker test (node:20 + bun, --network host):

• Installed from local tarball built with the fix
• ls .next/standalone/.next/static/ → chunks, CSS, manifests present ✓
• Dashboard starts, curl -sL localhost:8020 | grep '<script' → 2 matches ✓
• /_next/static references present in HTML ✓

🤖 Generated with Claude Code