It's meant to be working via iCloud, so no, it will not work without you logging in on both devices.

That might be true, but think about iPads from familys. Would like to extend my macbook with my dads iPad. 

So connecting it with usb c and unlocking in with the code should work too.

It's designed to work via iCloud. Think about it - otherwise you could request to use any other device on the same wifi or in Bluetooth range. Not really brilliant when you're out & about :-)

It's designed to work via iCloud. Think about it - otherwise you could request to use any other device on the same wifi or in Bluetooth range. Not really brilliant when you're out &amp; about :-)

Has anyone gotten this to work? It doesnt work for me unless I login to iCloud.

Tried pairing them over bluetooth, connecting via usb-c. Nothing works.

Sidecar without iCloud?