The open source revolution is a game-changer in the business world, and also is of significant interest to self-sufficiency enthusiasts. SoftBaugh has released an article on open-source software to establish a baseline for future, more technical articles for small businesses. For self-sufficiency purposes, the (proprietary yet heavily vendor-subsidized) Raspberry Pi single-board computer is an important resource for open source projects, as is the Python programming language, which itself is purely open source. Getting comfortable with open source office tools, then Linux, Python and the Raspberry Pi, will help open the door to more interesting Raspberry Pi projects. A wide variety of self-sufficiency tools can be built around these, such as the field phone Morse decoder project, as only one of many examples.