Its basically IMAP, WebDAV, and CalDAV, plus a few other things, in one protocol. It greatly simplifies and unifies communications over a modern HTTPS connection while being an open standard.

JMAP is IMAPs open standard replacement.

Or JMAP, which is IMAP that doesn’t suck.

What CPU are you running? If you’re running an Intel CPU, most transcoding can be done using Intel QAT. Not sure metadata or OCR, as I’ve never needed large scale for these.

Otherwise, I 2nd what everyone is saying about Intel ARC GPUs. I saw an A750 for sale for $80 refurbished with a 2 year warranty on eBay the other day, so the older first gen ARC cards sometimes pop up for cheap.

Depends on your settings. You need to reboot for kernel upgrades, so you’re good if you have automatic periodic reboots configured and kernel updates applied unattended.