Didn’t happen until now, but if you are into this, the time might be now (or very soon, some weeks). Because now that we heard (in this case about Azure) that the cloud is full, people might want to self-host in a server co-location facility or even in the office or home, as 50 Mbit/s upload is often available these days.
It could be started around here as part of our pandemic response activities. There are a few threads going on right now where you could jump in and see if you can find people who want to be part of it: “Work in the Time of Corona Virus” and the topic where we started to define and organize our response projects.
Personally, I’d love to be able to recommend a stack of open source tools in the Distributed Collaboration Manual. And a company offering to install and support them 