Other key individuals to work on the project included François Barbou at OSF, and Vicki Brown and Gilbert Coville at Apple.
Apple later released the Open Firmware-based Power Macintosh computers, an official PowerPC branch of the Linux kernel was created and was spearheaded by the LinuxPPC project.
Debian also released a traditional monolithic kernel distribution for PowerPC—as did SUSE, and Terra Soft Solutions with Yellow Dog Linux.
The installation process was seen as "either smooth as silk or very, very rough" and that it "can also be slightly more difficult to recompile the MkLinux kernel because of the extra steps to placate the Mach microkernel."
[3] OS X is based on the Mach 3.0 microkernel, designed by Carnegie Mellon University, and later adapted to the Power Macintosh by Apple and the Open Software Foundation Research Institute (now part of Silicomp).
You may find older versions of the Mach source code interesting, both to satisfy historical curiosity and to avoid remaking mistakes made in earlier implementations.