Here is a list of projects that I have involved myself in at one point or another. This list is incomplete (indeed, you might find that a recurring theme on this site), but you might find it useful for getting an idea of things that I'm interested in. This is roughly sorted from most recent to most ancient; at the very top are recent actions I've taken on GitHub, which might give a better view of what I've been spending my time on lately.
see also: my local Gitweb setup, on which truly ancient projects are stored, my GitHub page, an old revision of this page.