Each morning it digs up the commits Ethan made exactly 3, 6, and 12 months ago across every repo in ~/, then writes a warm 3-4 sentence reflection on what past-Ethan was building that day and delivers it as an e-ink card to the tablet. Ethan has a 'daily-rewind' for today and dozens of forward-looking briefs, but nothing that looks backward — this turns his own git history into a quiet daily moment of perspective with his morning coffee.
Create ~/bin/on-this-day (~75 lines bash). Cron at 06:00 daily (safe-append pattern). Discover repos via `find ~/ -maxdepth 2 -name .git -type d`. For each target date (date -d 'today -3 months', '-6 months', '-1 year'), run `git -C