DeMackEd is a patcher program for Doom on the Macintosh (similar to DeHackEd), created by Chris Hawley. The program is available at http://www.macfury.com/, the official website of DeMackEd since 1997.
DeMackEd was originally programmed in HyperCard, but Chris then built the program over from scratch in the Pascal programming language.
The current version is 2.5 and is PowerPC native. A 68k version has now been released.