i did not realize how fragile "sd card plugged into raspberry pi" is. my headmate's 3d printer server just... had an sd card die. it sort of reads except sometimes it spends half a minute reading a single sector
@whitequark I find that RasPiKey are handy for this. They cost a little bit more than an SD card, but they are much more durable flash. They do however stick out of the SD card slot quite a bit.
I use them in my PiHole boxes after I got bored of the SD cards dying all the time.