With a one official repository as the remote, and multiple local repositories cloned from it, can a pre-commit hook be scripted on that main repository and be enforced on al
can a pre-commit hook be scripted on that main repository and be enforced on all clones of it?
From githooks(5):
pre-commit
This hook is invoked by git commit, and can be bypassed with
--no-verify option.
Since the hook can easily be bypassed, it seems the answer to your question is "no".
Also, since the .git/hooks directory is not cloned, there does not seem to be a mechanism to push it to the client.