Opinions about the "Stack" (broad question)

Discussion
1

I’m in the final stages of debugging a Phaser3 game developed in Cursor and looking for my next learning experience. I’m looking for recommendations on the best tech stack for small health-focused SaaS apps I’m building in Cursor. I’m leaning toward React with Tailwind CSS and serverless Node.js (will be hosted on Vercel) for a collection of various calculators.

The initial version doesn’t require user authentication or payment processing, but I’d like opinions on these aspects for future development as well. I’m considering Supabase for authentication/database and Stripe for payments when I’m ready to add those features.

I’d love to hear about:

  1. Which frontend framework gives me the best balance of development speed and performance
  2. The most efficient way to implement basic calculation logic
  3. How to optimize my deployment workflow with Cursor
  4. Simple but scalable state management approaches

Has anyone found certain frameworks that work particularly well with Cursor’s AI features? And is furnishing a template for the AI essential, nice to have, or just causes more problems?

I’m looking for a tech stack that has flexibility and will grow with my skills, works well with cursor, works well with GitHub/vercel, etc.

Thanks for any insights!