[mk12]

I just started a new job where I’m collaborating with the maintainers of mercurial, and was asking them about these alternative VCSs last night. It was interesting to learn that all these people are in contact with each other and there’s a lot of cross pollination of ideas. And for some newer ideas e.g. in jj and pijul, where just reading the website would have me 100% sold, they had more nuanced takes on the pros and cons. So I feel less confident in giving advice than I would have a few days ago. But if you need seamless git compatibility, I’ve personally found git-branchless to be the best solution for the requirements you listed as a thin layer over git. I also tried jj a while back and I liked it but I found being further removed from git made it harder to drop down into regular git when I needed to. In particular I had issues with jj log showing lots of irrelevant commits but that was probably because of our particular Gerrit setup and might have been fixed by now.