I'm interested in many different things technologically and I think some of the projects I'm starting to open source reflect that. In addition to moving simplestore's repo from google code to github, I released two new projects of mine that are very early-stage. One is HubDB, an experimental datastore written in C. The other is Obelisk, a 3D rendering engine I've been throwing together.
I started working on HubDB because I've been interested in creating a distributed datastore for my own projects. It uses libevent, berkeley db, and jansson for JSON parsing. It literally only supports get and put operations at the moment.
I started Obelisk because I've always been interested in doing game development. In fact, my first big project many years ago was writing a graphics engine. Obelisk is very alpha and I've been working on abstracting parts of it so porting to other systems is straightforward. For now it only works on Linux. It uses OpenGL with GLX.
I normally wouldn't release either of those two projects in their current states, but I'd rather work more out in the open. Putting these two projects on GitHub this early may also benefit other people looking to do something similar.