Production build assets fail

[fallen niche]

I ran next build and node ./app/cms/.next/standalone/app/cms/server.js. The server starts fine, but all of the assets in the HTML seem to be prefixed with /_next, and none of them load.
Looking in the static folder of the build, there is no _next folder, the assets are served directly from the root.

Where is this _next prefix coming from?

[mild bone]

New Community-Help Thread Created!

Help is on the way! To mark it as solved, use the /solve command. In the meantime, here are some existing threads that may help you:

Documentation:

• Jobs Queue - Example use cases - Offloading complex operations
• Production Deployment - Basics
• Tasks - Advanced: Handler File Paths
• Building without a DB connection - Using the experimental-build-mode Next.js build flag
• Migrations - When to run migrations - Postgres

Community-Help:

• What's the best way to secure API endpoints and allow it only from the front-end?