I have the 8400T with 16 gigs of ram. Most of the same apps but also a home assistant VM and frigate. Cou usage is between 6 and 12% typically, I think it hit 30 once

Normally speaking you can get all of it into home assistant through various forms of hackery. You ready to open up that can of worms?

Flag a warning when usage hits 5% so you can start saving for the next server

16 runs fine for me. I transcode to an SSD and run home assistant and airsonic and emulatorjs and immich and frigate and monitoring software like glances and uptimekuma and and and.

Ram is at 70%, could use more, 8 isn’t enough but 16 will get you going