lyp - The Lilypond Swiss Army Knife
lyp is an open-source tool that takes the pain out of working with Lilypond.
No hassle Lilypond installation: with lyp you can install Lilypond with a single easy command, no need to click links, or unzip and copy files around.
Lyp is written in Ruby, and its code is available on github. To hack on it, simply clone the repository. To run the specs:
$ cd lyp $ bundle install # needs to be run only once $ rspec
Please feel free to submit issues and pull requests.