Also, having critical software depend on one guy is not safe. We should avoid that. If critical software depends on one guy it should be phased out.
Here are the percent of commits from the top committer in each repository you mentioned, as well as rsync, over the last 3 months:
- rsync: 99.0%
- restic: 93.2%
- rclone: 87.5%
- union: 82.9%
- syncthing: 74.4%
As you can see, each of this projects depends heavily on a single person, though to a lesser degree than rsync. That's just the nature of most open-source software.
Note that I excluded dependabot commits from the calculations and counted Claude commits as the lead developer for rsync