I prefer weighing beans instead of eyeballing it to get more consistent quality (I use 14 grams for two-cup pot). Also try to take off your mokka just before it gets angry and splushy, that’s the point where most bitterness comes out.

Ten years is a long time. In ten years 4Tb storage will be less than a crappy thumb drive.

For reliant storage I personally would get two hdd for a price of one ssd, slap a software raid1 with ext4 on them and forget about them until the mdadm alerts