Other software

umprof
call profiler for Umka.
stagal
static HTML gallery generator. You can see it in action here.
coulau
collection of Umka libraries and utilities.
minifont
5x5 font as a C header.
CREED (Concatenative REgex EDitor)
language for making text processing scripts.
railway simulator
Railway simulation with a builtin editor, made in tophat.