So here's the GitHub project: https://github.com/harness/gitness
How does the project already have 27k stars? Surely this was not public before?
Or do you think drone always had this product?
Looking at the forks list, it looks like they converted their old "drone" repo into the "gitness" repo:
https://github.com/harness/gitness/forks
So the stars all carried over.
The old drone link now redirects to gitness: