KEGS is an Apple IIgs emulator originally developed for HP-UX by Kent Dickey (thus its name Kent's Emulated GS) and since then was made available to various UNIX-based platforms. The present version uses SDL, a cross-platform library designed to make it easy to write multi-media software, implemented in KEGS 0.61 by Fredric Devernay. This is a port to the Cocoa environment with a lot of optimization done for "l'Emulateur-ki-tue", both on the source code and in Cocoa integration.