Hi there! I'm in the early stages of building a blogging platform just for programmers. My main criteria was ease-of-use and that it support code-highlighting out of the box. You can check out what I have so far at www.progblog.io. I must warn you, that it is NOT a mature app at all, and I wouldn't even call it alpha. I will be releasing (and announcing) something here on HN in about 2 or 3 weeks, with a much nicer design (similar to Medium in its simplicity) and a more natural workflow than what exists today.