Computing
I'm involved in these software/hardware projects: see my GitHub for more.
K-OS
A UNIX-like operating system I wrote from scratch in C and assembly.
Transistor Computer
I'm building a modular microcomputer out of 74XXX series logic ICs. It has an assembly languge and virtual machine.
lean-rewrite-search
A general algorithm which proves arbitrary equational lemmas by repeated rewriting, implemented in Lean.