04-23-2021, 10:20 AM
Update: this seems to be a bad idea on a 1GB Raspberry Pi, having /var/cache in RAM was causing my system to become unresponsive and there were kernel messages relating to memory allocation errors. I reverted and these problems have gone away. YMMV and maybe it works better on the Pi 4s with more RAM, or without the local display enabled, but I definitely wouldn't recommend it on the older Pis.