dahlia/dojang ? reverse-engineered prompt

Build me a cross platform dotfiles manager that helps me keep my config files in sync across my machines, including Windows and POSIX systems.

I want it to install and manage dotfiles from a chosen source into the right places on each machine, while handling the fact that some files may need to live in different locations or contain different content depending on the environment. Make it feel safe to use, with a dry run mode so I can preview exactly what would happen before anything changes. Also make the error messages clear and friendly, with helpful hints if something goes wrong.

Please make it a small native command line tool, fast to run, and easy to install. If you need to check current docs or best practices while building it, go ahead and look them up online.