Your comment brings up good points. I've thought about prototyping with Fossil; not sure if I'll do it because I'm also building a sandboxing build system that

Your comment brings up good points. I've thought about prototyping with Fossil; not sure if I'll do it because I'm also building a sandboxing build system that should slot into CI easily. We'll see. I haven't dug into CI design much, so I could be wrong, but CI seems pretty easy to do on top of a sandboxing build system and a VCS with hooks. One thing I know for sure is that I'm not going to use YAML. :) But I do take inspiration from the Fossil guys; for example, my VCS will have a bug tracker, wiki, and other project management stuff built in. It will also allow multiple checkouts and be one self-contained binary. It will also use SQLite for storing information about commits and other small things. It will, however, depart from Fossil's format to handle large files. And binary files too. So rest assured that I'm in touch with the Fossil guys. :)