I can't remember whom I adopted creating a Colophon page from. Historically, this was "a statement at the end of a book, typically with a printer's emblem, giving information about its authorship and printing" (via Google Dictionary).
So, I keep notes on what software and other tools I use, in part as notes to myself.
My personal blog colophon documents software & changes all the way to 2001.
bmannconsulting.comWikiJS (May 2020)
As of May 2020:
wiki.bmann.ca(which now redirects here) and the bulk of it was food / travel stuff aka Duck Ramen Wiki
bmannconsulting.cominto the archive, including bringing in some trimmed and posterous-era stuff back online
Still a WIP, and will write up a blog post once things have settled
wiki.bmann.caWikiJS (Aug 2018)
As of August 6th, 2018:
wiki.bmann.caTiddlywiki (Nov 2016)