I really just want to buy a cloud key because I think it'll be easier. -_-

= DIY controller stuff =

On any sort of OS:
 * https://community.ui.com/questions/UniFi-Installation-Scripts-or-UniFi-Easy-Update-Script-or-UniFi-Lets-Encrypt-or-UniFi-Easy-Encrypt-/ccbc7530-dd61-40a7-82ec-22b17f027776
 * https://get.glennr.nl/unifi/install/unifi-5.13.32.sh

Some easy guides:
 * Easy-UBNT for supported OSes: https://community.ui.com/questions/Easy-UBNT-Install-Update-and-Secure-UBNT-Software/9ccb57b3-b9a7-4e42-9bae-2306efd8243f
 * Controller on an RPi, with Pi-hole: https://community.ui.com/questions/Step-By-Step-Tutorial-Guide-Raspberry-Pi-with-UniFi-Controller-and-Pi-hole-from-scratch-headless/e8a24143-bfb8-4a61-973d-0b55320101dc

I should really setup pihole one of these days, and then I can also use it for dnsmasq and local DNS that doesn't die when the internet goes down. Just get DNS off the USG, I already don't use it as it is.