It's now possible to self-host your own Convex instance, so in this video we're going to walk through how to do this on Fly.io
Convex is a database and backend all wrapped into one AND it allows for realtime updates to be reflected in your frontend as your data changes.
Self-hosting Convex on Fly.io:
https://github.com/get-convex/convex-backend/tree/main/self-hosted/fly
Convex docs:
https://docs.convex.dev/home