When I set up my blog five years ago, it was an exercise in web development using PhP and PostgreSQL. I've added a few features as time went by, but it's gotten to the point that it's just easier to use existing blogging software, instead of maintaining the old code.
So, welcome to the new blog. I purposefully made it visually similar to the old one, to help with the transition. You can still go to the archive for older posts. Pardon the dust, I'm sure there will be some issues before things settle down.