Okay, this is pretty cool. With sbt, you can magically refer to dependencies that are set up as GitHub projects, and those projects don't need to have a jar file, they can just be a source code library. This means you can save your Scala libraries as source code to GitHub (like you normally would), then pull them into your other Scala projects simply by referencing them in your build.sbt file.
Assuming you're comfortable with sbt, here's a quick six-step example that shows how to pull a GitHub library into a simple Scala project:
