It can be done, but it’s not where the hype and the practice is. It’s all about number of commits, number of PR, churns in LoC, which has no bearing on software quality and usefulness.
Something like caddy[0] is just 2700+ commits over 7 years. That’s like 32 commits a month in average. Even if you apply an exponential decay (going from greenfield to mature project), the latter years would have been way peaceful. I know AI can help in some cases, but is it such a pressing need. That would been like taking a car to go somewhere less than 10m away.
Most (mature) open source projects progress a few changes at a time. Most of the time is about ensuring that nothing breaks due to the change.