Next.js 14 introduced the feature to seed data

Official Docs: https://nextjs.org/docs/app/building-your-application/optimizing/instrumentation

Note: As of this writing, it’s an experimental feature, but it has worked for me when deploying on Vercel.

• Create (or edit) next.config.(mjs/js) file.
• Add the instrumentationHook: true in the config.

- Add a new file instrumentation.(ts/js)in the applications src folder (or whatever you have chosen)

- After some trial and error, this is what has worked for me.

- My initializeFeatureFlags function is a regular server side function that calls my database.