The demo VeilidChat app doesn't lead anywhere, but there is a gitlab.

I haven't tried it yet.

https://gitlab.com/veilid/veilidchat

edit: I did, I failed to build it with "version solving failed.", I am not learning how to debug Dart builds right now

edit2: well, build.sh finished with some installing, but I still don't see any binary. Eh, other day.