Plint is a linter for text files. It finds predefined errors and warnings in the text files. You can define custom rules using a language developed specifically for linting.
A sweat-proof (hopefully) macropad. (I had no idea what I should set the demo URL to)
A small gadget to supply 3V power to microphone.
Kadent is a DAW software with a custom language called KASL designed to create synthesizers and effects. Backed by Cranelift, KASL can be compiled very quickly and can be run inside Kadent seamlessly.