Came across this on the r/selfhosted community. Still very much in the alpha stages, but it’s already got a Docker image you can try out for yourself, or try out the demo server.
Tried it earlier today, couldn’t get the voice/video chat to work right away on my self-hosted setup but the real-time chat was very snappy. Looks promising.
Their registration process is currently hugged to death. Can’t receive verification emails.
Yup, saw some stats from screenshots on there, their mail service had a cap of 300 mails monthly and it blew up to over 50 000. Verification/mail servers went up again yesterday at 4am CET but still seems like the authentication servers are pretty overrun.