Ask HN: Are there tools to synchronise config files across repositories?

I'm looking for tools that allow synchronising files across repositories. If I update my `.pre-commit-config.yaml` file in a repository, I would like to be able to replicate the changes in another. Note that the files might be slightly different but they are 95% the same all the time.

https://github.com/voxpupuli/modulesync seems to support some of that process but I'm looking for other options not requiring Ruby.

Cheers,