Free beer, kind of

Sure, there may be thousands of recipes online for every conceivable type of beer freely available to anyone brave enough to trust the creative whims of a complete stranger, but how many of them can claim to be open source? Quoth the Dane: "We've effected a slight merger of the software world and the equally geeky world of home brewers."
As cute as the idea is, I think I'll join Alan in running this recipe through ProMash and see what it looks like. Thankfully you won't have to feel guilty were you to "tinker with the ingredients", as you may be none too eager to brew with guarana (not to be confused with guano) beans.