Still porting Debian packages for the Hurd. To do this more easily I've installed sbuild which does the job of tracking the dependencies and compiling the package inside a chroot.
It is a bit tricky to get the chroot working (requires using crosshurd instead of debootstrap as under GNU/Linux), but once it's done it speeds up the automatic building of non-problematic packages.
I've setup a repository of the packages I've built using it at http://packages.physicman.net/hurd/
Lately, I've had a report that my DCC local_scan for Exim doesn't work on Solaris, so I've started to rewrite parts of it. Rereading the code, I'm quite amazed that it works at all ;)