I hadn't heard of Pijul. My first search took me to https://github.com/8l/pijul which hasn't been updated in 11 years, but it turns out that's misleading and the official repo at https://nest.pijul.com/pijul/pijul had a commit last month.
... and of course it is, because Pijul uses Pijul for development, not Git and GitHub!
> I hadn't heard of Pijul
I'm surprised! Pijul has been discussed here on HN many, many times. My impression is that many people here were hoping that Pijul might eventually become a serious Git contender but these days people seem to be more excited about Jujutsu, likely because migration is much easier.
The canonical website is https://pijul.org. The homepage has a link to the pijul source repository.