NullGator

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Mine diamonds by epic minecraft parodies (parody of take on me)

Dell optiplex desktop or workstation would def be a gpod idea. Both are much quieter than servers - you can get the workstation if you want a xeon chip and ecc memory - otherwise the desktop will likely do what you need.

Oops!

Look into PICO PSU. Its a small powersupply that uses a power brick to downsize internals. It's used by homelabbers sometimes.

If Tidal isn't your cup of tea, check out Qobuz - I've had a better experience with it. It doesn't pay artists as well as spotify, but I think it's still more than Spotify (iirc)

Try out void, it's pretty fire

Handbrake is a frontend to ffmpeg, so that's also an option

Perhaps you could configure more than unbound service behind a loadbalancer. Each unbound instance is configured to use different upstream dns servers.

Double check if unbound doesn't allow you to randomly hop between dns upstreams first, but the above solution should work if that's unavailable atm.

Also introduces the possibility of DNS poisoning

Yes its possible 👍

Use:

forward-zone:
  forward-addr: 9.9.9.9@853#dns.quad9.net

UNRAID is designed to run off a USB drive, they have recommendations on what USBs to buy on their site, might be worth a gander. You should be able to write all the info on your current USB to the new one without having to reconfigure anything.