jollygood (the Jolly Good Emulation API and Reference Frontend) Jolly Good Emulation is an education and preservation oriented emulation project. As a side effect, it offers emulation technology that extreme minimalists may find tolerable. This package includes "jg" (the API headers) and "jgrf". jgrf is the simplest possible frontend for The Jolly Good API. The executable and man page are called "jollygood". After installing jollygood, you'll want to install "cores" (plugins) for the systems you want to emulate. Search for "jgemu" to find them on SBo. Also, if you want to install all the cores at once, use sbopkg or sbotools and either "jollygood-all-cores.sqf" (for 64-bit) or "jollygood-all-cores-32bit.sqf" from the SlackBuild directory. Ideally, once a core is installed, you can run games for that system with "jollygood <filename>", where <filename> is either a ROM or disk image, or a .zip file containing the image. This only works if the filename extension is known to jollygood. If you get "Cannot detect default core", you'll have to use the -c option to tell it what core to use. See also the jollygood(6) man page. If you're considering submitting a SlackBuild for a jollygood core, please read GUIDELINES.txt.