This is issue #28 of Arnes Weekly.

28 / Willingness to look stupid

Hello from sunny Germany, enjoy this weeks collection. ✌🏻

Tweet of the Week

idea: Computer but good — @barrelshifter on Twitter



Software Engineering

  • Scott Mabin ( — Another update on Rust on Expressif chips (like the ESP32c3).
  • NixOS on Framework laptop ( — Dzmitry Malyshau set up NixOS on the Framework and has some additional insight. Sounds like a great combination.
  • New HTTP standards for caching on the modern web ( — Tim Perry introduces the new cache headers, namely Cache-Status and <Target>-Cache-Control. You can use them today with some providers!
  • Why not "Why not WireGuard?" ( — Avery Pennarun about a popular article by Michael Tremer and their arguments against WireGuard (Tailscale runs WireGuard under the hood).
  • Herding elephants: Lessons learned from sharding Postgres at Notion ( — Garrett Fidalgo explains the strategy of sharding the Notion Postgres monolith and what they'd do differently today.
  • New UUID Formats ( — There's new UUID formats underway, which incorporate a mix of randomness and time (similar to Snowflake, Sonyflake and friends).

Cutting Room Floor


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