Migrate Loveable to Supabase+Vercel -- 2

I need assistance migrating user and application data from a Loveable backend to a new setup using Supabase and Vercel. The project involves transferring the data securely, ensuring smooth authentication handling, and setting up a similar or improved infrastructure on the new platform. Skills required include expert knowledge in Supabase, Vercel, and backend data migration. Familiarity with authentication methods and server-side function migration is a plus. Also need a page to create and manage users / password and some debugging