Here’s a cool project for those of you who like a drink or two. It assumes that you’ve got some kegs (or barrels) of beer (or other drink). The software (known as Kegberry) can either just list your kegs or, with the aid of some flow sensors, monitor how much you’ve poured out and how much you’ve got left. The software is all open source. You can find out how to put together a Kegberry by going to this page. Alternatively, there is an entire website devoted to the system here.