

735 is definitely just the number of devices that can boot postmarketos. The list of mature, well-supported devices (with enough working features to be considered as such) is much smaller, though still pretty great. Making phone calls seems to be especially spotty, unfortunately.
The full list, with matrices showing working features on each device, is here: https://wiki.postmarketos.org/wiki/Devices









The one recurring unsolveable problem I run into is not being able to kill a process that’s stuck in D state. If something has broken in the layers between that process and hardware (not uncommon when working with old cheap “box of scraps” hardware, as I like to do), it can get stuck forever and you have to kill the whole system, sometimes forcibly. Not the end of the world, but it sucks when it happens.