I actually use this same method manually with git. I have a .theme folder in my home directory, which is a git repository, containing the directories bin and user. The bin directory houses utility and convenience scripts which are tacked on to my PATH while the user directory holds all my relevant dot files. Then, a setup script in the root .theme directory symlinks the relevant dot files from the user directory to $HOME.

The great part is that I can keep branches for each computer which share my configuration. And being that I consistently use Arch, I also employ an install script with my common packages to speed up new installations.

In the end, it shaves a good hour or so off my installation process.