I would recommend using Phoenix + Ash + Surface UI for this project.

• Ash will help defining the models and api endpoints
• Surface UI will make easier to create liveviews for people that comes from react.js

With these considerations you can create a professional software and have all the good parts of Elixir and BEAM.

I think if you’re asking here, there might be a bias in the responses you get

But this statement reminded me of this recent blog post:

That is exactly what is meant by 'technical risk and shortest time to market"

Live react is a better choice than surface: LiveReactExamples · Phoenix Framework

I am sorry - for my sake - I replied to your message by mistake, instead of the OP.
go in peace.

LiveReact and LiveSvelte are good choices. But they must download the client js code. So for certain use cases, for example when you need to have less than 1 mb of JS downloadss to improve the Lighthouse metrics, then Liveview and Surface UI can be a better choice.

This is real example, once of my previous projects they migrated from Next.js to SurfaceUI due to reaching better Lighthouse metrics and less JS bloat.