[direwolf20]

Codeberg is a nonprofit community project aiming to replicate that. You can use it today.

[hirako2000]

I've used it, it's great, more like what GitHub was meant to be.

There is Forgejo. I find it more stable, I self host that. It never suffered an outage in 2 years that I had it running and is faster than GitHub.

[direwolf20]

Codeberg is a public instance of the Forgejo software, which you can also host yourself.