I have no particular affection for or against STI, but the only Tinyboard code that's there is for the purpose of interfacing with Tinyboard. It would be counterproductive to remove it. Under the current repository organization, if I added, for example, a Kusaba X version, that would be another branch containing code from "core" and some Kusaba X glue code. And at that point I would probably set "core" as the main branch on github. I'll think about better ways to organize it all, though.