I’ve made some awesome progress on apt-checkpoint lately. There are four primary commands that apt-checkpoint recognizes: create, view, diff, and rollback. Right now, all but rollback are functional. Rollback will probably be the most difficult, which is why I saved it for last.
I’m going to get a project page up in the next few days. I applied for one at SourceForge, but then Jorge pointed me over to Alioth, so I’ve applied there as well. To be honest, SourceForge looks like it has more features, but Alioth is a Debian-run service, which might be better for me in the long-run, considering I want to become a Debian Developer. I guess I’ll wait and see who approves my project first and see how impatient I am.