Software development for 4Mb portable, using Z80 CPU and AA batteries
A tapas/topaz/sapphire kernel optimized for smoothness and low-memory
Tool kit for building highly secure special-purpose operating systems
Get latest Edition here: http://www.openqrm-enterprise.com.
Mirror of: https://github.com/osdldbt/
Building and running ancient Linux on Windows
Cluster wide IPC providing datagram, connection, and bus messaging
An ADL-mode rewrite of the ez80 CP/M 3.1 port
Musician-oriented Linux distro
It's a personal microkernel project designed as a learning ground.