A place to keep track of things I’ve learned. Inspired by Simon Willison’s TILs .
Visit til.andrew-quinn.me → RSS feedOn Hacker News Sep 2025 – May 2026
Tools & Productivity 1Systems & Performance 1Life, Learning & Writing 1Databases & Data 1
Note for numberphiles: all numbers have been rounded to their first significant digit, because I’m a fan of Rob Eastaway’s “zequals” method of getting to the point when it comes to estimation. It’s much more valuable to walk away with the heuristic “some dude got a 300x memory reduction by swapping out a database he…
I have been aware of tarsnap for a long time, but only recently did I actually get around to using it for anything, as a result of my big personal digital resiliency audit for 2025. For those of you not in the know, tarsnap is “online backups for the truly paranoid”, and tarsnap the command-line program is the…