It is heavily inspired by Darcs, and is based on an alternative "theory of patches" that reportedly has much better worst-case performance characteristics.

It is written in Rust, instead of Haskell, also contributing to better/more predictable performance.

The Darcs folks are very aware and supportive of it, and last I heard, Darcs might add support for the Pijul patch format.

This is an extremely exciting project.

(speaking as a long time Darcs fan and passive onlooker who saw the Pijul presentation at rustconf)

Not sure why this was downvoted, it is a legitimate question.

https://pijul.org/faq.html#did-you-solve-the-exponential-mer... answers it, at least partially. There may be a more comprehensive comparison, though.

It's supposedly faster, or, has a tolerable performance (I've nevere used Pijul, and never used darcs to the extent that it became slow).