The Document Foundation (TDF) uses Gerrit for the code review of LibreOffice. You can also clone the source code from there (and submit it). Thanks to the admin team of TDF the Gerrit instance is always up and running.
A commercial company created a fork of LibreOffice at April,1. It started it’s own Gerrit instance, but seemed to not employ a capable admin team for it’s infrastructure. Because of that you continous outage of the infrastructure of the company and Gerrit respctively nginx sends a error message 502 ‚Bad Gateway‘.
This makes it obvious that running a software project only with developers isn’t flying. There is much more needed for a succesful project, e.g. a capable infrastructure team.
And for a successful office software project you need among other things e.g. people working on localization and documentation, helping users and run the marketing of the software in as much as possible countries (speaking the regional language).