Red Core, is a system of thought. Technically, it is an integrated collection of a few thousand lines of POSIX shell scripts, Emacs plugins, and small C applications and utilities, all written by me for my personal work-flows. Red Core is loosely inspired by the Zettelkasten, GTD, various database management engines, disk drive file-systems, and some methods for managing and indexing libraries of physical paper documents. I will write more about it later, as time permits, and perhaps publish some source code.