I have a post-commit hook that I add to all my git repos that saves a record of every commit I make to a journal that I've been keeping for nearly a decade.
It's part of a very messy hacked together app I wrote a long time ago that keeps records of a bunch of stuff, and I get my own look into the past every day with a daily journal of entries from "on this day" that my computer emails to me. In addition to git commits, it has things like Fediverse posts (or in the past, tweets), Foursquare check-ins, TV shows and movies I watch, manual notes I write, etc.
Today, I saw a commit to a repo for a former job that had the commit message "
♪Clean up, clean up everybody, everywhere♪". The indicates the change was related to testing, but otherwise I have no idea what that meant. An hour later, I had another commit that said " Embiggen tests with more cromulent code".
I no longer have access to that repo, so I have no idea what actual changes I made in those two commits, and obviously, the commit message offers no insight into the actual changes, aside from being testing changes.
Anyway, let that be a lesson in how not to write good commit messages, as well as some little insight into how my mind works.