See the commit history: https://github.com/Renovamen/playground-macos/commits/main

I started it about 10 days ago, but it's hard to calculate out the exact number of hours...

10 days!! You might be a real life example of a 10x dev...

the time line in the first day of commits is incredibly tight. Later commits frequency looks more on par with what I would expect. But many people don't commit for a while before their code starts working.