I've now nuked and paved my #RaspberryPi 4B for the 4th time. By now I've learnt from experience that SDs aren't meant to last holding the entire filesystem. After another case of "Segmentation fault" (likely corrupted SD), I've moved the filesystem to a USB. Depending on performance, I may reattempt moving everything to a partition of a 1TB HDD being used primarily for #Plex.