Actually if you could make something like github, where all software would be part of a single megarepo and built constantly that would be incredibly useful, an

Actually if you could make something like github, where all software would be part of a single megarepo and built constantly that would be incredibly useful, and bazel would be excellent for that (or at least the closest thing we have to reasonable) The problem with bazel and almost every other build system (all except the "scan the source files and build a dependency graph" ones) is that you'll be writing build instructions for all your dependencies that aren't using it. If that was done for you, they'd be incredible.