A house made UnityCraft.de Plugin is beeing developed and you can watch. It’s open source and can be used by everyone. I’m in an early stage of development but you can also help or just have a look at the code. Go here: https://gitlab.nextgamers.eu/freaky/UCPlugin
If you want you can register your own account on our GitLab and host your code, fork others, create groups and what not. You can even have a CI runner if they want to have one.