If you're interested in an ultra-lightweight blogging platform, may I suggest that you check out Bloxsom (http://www.bloxsom.com http://www.bloxsom.com, pronoun

If you're interested in an ultra-lightweight blogging platform, may I suggest that you check out Bloxsom (http://www.bloxsom.com http://www.bloxsom.com, pronounced "Blossom")? It's written in Perl, all blog entries are text files, and categorization is done by sorting the entries into different folders. Admittedly, it doesn't run on RoR, so you can't just pop it up on Heroku, but Bloxsom has been around for years and years, and has a stable group of maintainers on Sourceforge.