Dotdrop is a dotfiles manager that provides efficient ways to manage your dotfiles. It is especially powerful when it comes to managing those across different hosts.
The idea of dotdrop is to have the ability to store each dotfile only once and deploy them with different content on different hosts/setups.
Most information on using dotdrop is described in this documentation and in the readme.
For more, check:
For more config files examples, search GitHub.