git repo size is too large

Cloning fresh too a _while_ becuase the git history of `main` is now large.

https://medium.com/@sangeethkumar.tvm.kpm/cleaning-up-a-git-repo-for-reducing-the-repository-size-d11fa496ba48 details how this can be reduced with git-gc - BUT before we do that here we **need to ensure that we will not prune #1124 ** as those files we likey do want to recover. 