Boilerplate Request: Mobile AI App

Hi everyone, I currently have a web application built with Next.js with an active user base of 1k, and I’m planning to create a mobile version of it. Here’s a breakdown of the tech stack I’m considering:

Frontend (Mobile): React Native/Expo

Backend: JavaScript-based options: Express, NestJS, Fastify

Alternatively, Python-based options: FastAPI or Django

AI Integration: LangChain

Database: Supabase

I'm looking for a robust boilerplate that covers these aspects. Any insights or suggestions would be greatly appreciated! Any insights or suggestions would be greatly appreciated!

Thanks!