NASPRO ("NASPRO Architecture for Sound PROcessing") is a collection of Free and Open Source sound processing software built around the LV2 plugin standard.
Retro is a clean, minimalist language with roots in Forth. It supports all major OSes in use today, and was designed to be easy to learn, use, and modify for specific needs.
A console login system.
A command-line filter converting to or from a CSV stream.