Improve documentation

[gebeer]

Is your proposal related to a problem?

Having difficulties setting this up

I installed and started https://github.com/homanp/langchain-ui-api and have a running Supabase instance following https://supabase.com/docs/guides/self-hosting/docker Then I started langchain-ui but am getting a Type Error: invalid URL related to /langchain-ui/node_modules/next-auth/utils/parse-url.js (17:16)

I guess I need to supply the nextauth related credentials inside .env. But this is where I'm starting to get lost.

What also boggles me: By default the Supabase instance runs on localhost:8000. I guess this causes a conflict with uvicorn also using localhost:8000? Again it would be nice if this was better documented.

Describe the solution you'd like

This project might be targeted at the more experienced users. But it would be great if the documentation could expand a bit more on setting things up, especially Nextauth, Metal API and all the other stuff that seems to be required in .env (apart from OPEN_API_KEY which should be quite obvious) That would be much appreciated.