In the underlying directories, you will find software I have written for training videos and other tutorials. Many of these videos are on https://www.youtube.com/channel/CallousCoder
Many different languages are covered, ranging from MUMPS (M) to modern day languages like Zig (which I adore) and Rust. All these tutorials are based around small (private) projects, that I either created purposely for videos or have been created for small private projects.