The app has no database connection, so there is nothing to show yet.
.env.local.example to .env.local, or run npx vercel env pull .env.local to fetch what you already set on Vercel.NEXT_PUBLIC_SUPABASE_URL, NEXT_PUBLIC_SUPABASE_ANON_KEY and SUPABASE_SERVICE_ROLE_KEY.supabase-migration-001-core.sql in the Supabase SQL editor.