This is awesome to see, feels heavily inspired (in a good way) by the version we made at Vercel[1]. Same tech stack: Next.js, NextAuth, Tailwind, Shadcn UI, Vercel AI SDK, etc.
I'd expect this trend of managed ChatGPT clones to continue. You can own the stack end to end, and even swap out OpenAI for a different LLM (or your own model trained on internal company data) fairly easily.