Juliusz Chroboczek is the author of DarcsGit, of vc-darcs.el and of Polipo. He has a few public darcs repos.

He used to be in charge of the darcs-unstable branch (EricKow has thankfully taken over, and is much better at that job), and used to be somewhat particular about patches.

How he uses darcs. Why he uses darcs. What it was like before.