That’s really good of you! 
Thanks.
I’m looking for a solution for an OCaml wrapper to Google’s OR-Tools (just part of CP-SAT for now). The underlying build system is cmake. The parallel build works well enough, unless it’s given access to all the processors, which, surprisingly, causes my Debian 13.3 box to freeze. A non-parallel build is way too slow; that’s how I got into all of this.
There is also a discussion about this question and a proposal for a request/grant mechanism building on a suggestion by @rlepigre , but I just don’t have enough competence and time at present to work on a pull request.