The Intel ones are quite a bit easier, but still not as easy as a PC. You need to disable some FW security settings to allow for a non Apple kernel to boot.

Supernote is the alternative I went with. They have a pretty responsive dev team and the cloud integration is optional, you can push stuff over the local WiFi network.

I returned my Remarkable 2 after a couple of days for a Supernote. Can do local network file transfer, and wifi screen sharing.