The read-only CD backup is a clever idea. The shelf-life of optical discs isn't terribly long but could be a good fit for this use case. 🧡 View quoted note →

TLDR for those who missed this: . RPi 0, 0W, 02W, 2 & 3 have permanent ROM that is burned in at the factory . "Firmware" is split between the Pi AND the microSD . Verifying the code on the microSD is authentic is vital, but simple . Sharing a signer is not ideal, but can be viable w/ trusted 3rd parties View quoted note →