Example: Repo-A has a File-A I would like to include in Repo-B. Whenever Repo-A updates File-A, I would like File-A in Repo-B to reflect those changes.
Reason: I'm using hardlinked files to manage my dotfiles with git, and I love LS_COLORS by trapd00r. I'd like to have all my dotfiles in one git repo, but I always want the latest LS_COLORS.