My anecdotal experience with btrfs is that it constantly broke in raid 1, no problems with any other filesystems on the exact same hardware and setup. YMMV

Thanks for sharing the info, hopefully PTP will get back up soon!

Keep in mind SD cards are not generally as durable as SSDs or HDDs, so rpi servers are doable but you should make sure to back it up. Some folks connect SSDs and make the sd card read-only for booting. I haven’t done this myself as I prefer towers.

Also be sure to not let your pi lose power, this can corrupt the sd card.

Neat! Thanks for sharing!

I’m with you there! I’d like to print a few for the looks.