.plan is a project mainly written in ..., it's free.
Random mental debris too small and disorganized to go elsewhere (inspired by John Carmack)
This is a collection of my .plan files, where I capture mental debris and other random junk that is too small and disorganized to put anywhere else.
They are tangentially inspired by John Carmack's .plan archive.
Each .plan has some kind of possibly witty "title for the day", along with a few sections that I make up as I go along.
My .plan files are in Markdown, because this ain't the 90's anymore.
If you want to try this at home, I have a small utilitly called plan which maximizes laziness and opens todays plan file automagically.