GitHub developer Zach Holman is responsible for boom, and you can take a peek at how he uses it in the screencast above (starting around 2:00 and NSFW if your workplace hates GIFs or occasional, innocuous swear words). You install boom as a Ruby gem (fire up your *nix command line and run
gem install boom). Once installed, usage is pretty simple, and since the homepage and screencast explain it pretty well, I won't dive into it here. Essentially, though, you create lists in boom and store text in those lists. To retrieve a snippet, you just run
boom name_of_snippet and boom copies the snippet to your clipboard. Pretty cool.
boom [Zach Holman]