I'd like to replace GitHub with something self hosted but I'd still like other people to be able to fork and especially do pull requests. Because everyone already has a GitHub account it's easy for them to do that. I wish there was some small software which would be easy to install and update and it would be connected to for example ActivityPub to be able to do pull requests. I'm not so keen on making everyone who wants to create a Issue or a Pull Request to make a seperate account on my own website, nobody will do that.