I'm durin42 on IRC.

I work on a variety of things in Mercurial, but my primary interest is in large-scale repositories and better feature branch workflows. I also occasionally chip at removing our dependency on httplib (it's broken) and getting us to work under Python 3.

hgsubversion is my fault, I review patches for hg-git, histedit is my fault. I think that about covers it.

My public repositories are on BitBucket and my own server.