The libraries are formed by git subtree merging https://docs.github.com/en/get-started/using-git/about-git-subtree-merges upstream things and modifying as needed here.
To pull from upstream, to a pull and rebase of our hacks here using the subtree thing.
e.g.: git pull -s subtree arsd master
note the arsd
there is the name of the repo.
Then the libraries are "built" using a special script here that extracts the necessary files to the actual usage path.
Still desired:
// openssl
// generally most the deimos