If you're building a B2B app: - Supabase on the backend (REST APIs are a solved problem, no need to spend a single hour on it) - Auth0 for authentication (too

If you're building a B2B app: - Supabase on the backend (REST APIs are a solved problem, no need to spend a single hour on it) - Auth0 for authentication (too risky to manage authentication manually) - react + react-admin SPA on the frontend (does 80% of the job for B2B apps) - lambda functions (for business logic that can't be exposed on the frontend) API-centric SPAs are such a time saver... when you don't have to build the API, and Supabase covers it. For a B2C app, you must render server-side. I'd go with: - Postgres - Next.js or Remix - Prisma