GitHub - twpayne/chezmoi: Manage your dotfiles across multiple diverse machines, securely.
This is by far my favorite software I've discovered in the last year or so. It's done just about anything I've needed. I definitely recommend you check it out.
https://github.com/twpayne/chezmoiOpen linkView original on programming.dev
I either use git bare repository or gnu stow.
+1 for GNU Stow
I keep my dot files in git repo and have different branches for different machines/environments.
It works well, while not being over complicated.