I moved from custom POSIX shell scripts to chezmoi due to the complexity of handling lots of random environments. It really simplified getting up and running on disparate server environments.

The last few years I've rarely had to switch machines, so maybe chezmoi is overkill now, but it works well, so I'm in no rush to simplify again just for the sake of it (and who knows if I'll need chezmoi's features for real again in the future).