ccache is just for c/c++.. Did you consider that it could be other things with ccache that makes it slow? E.g., the need to fully expand C headers and turn it

ccache is just for c/c++.. Did you consider that it could be other things with ccache that makes it slow? E.g., the need to fully expand C headers and turn it into a text stream (NOT needed for a build tool). Everything with git is lightning fast including operations that require a full directory tree diff / hash.