To various things that interest me, in no particular order. I know well some of the content I like, but you might be much more knowledgeable than me on many topics I list there. This is what I aim to discover, not topics I master.
"Free, Functionnnal and Secure"
"The Power To Serve"
A research operating system.
A operating system for teaching operating systems.
A holy operating system.
A famous operating system.
Distro that symlink files as a package management system:
The Genode OS Framework is a tool kit for building highly secure special-purpose operating systems
Written in C++ (bleh) but a good way to study how to do a kernel.
Considered by some as the "state of the art" microkernel.
Uses repo (bleh) and cmake (bleh) instead of more portable tools, but is definitely worth an approach.
Various groups of people sometimes writing software, sometimes related to other groups, sometimes collaborating, sometimes sharing a system.
People from above and others.
Most HTTP/HTML browser presented here have a
--dump flag of some sort, handful for converting html to mostly readable plain text.
The elephant in the room of crypto.
An SMTPd server that aims simplicity, security, and general good design.