This is a quick tutorial explaining how to access a reMarkable 2 tablet without cloud subscription. It works on Linux and should do on MacOS as well.
First enable USB connection and connect via USB, then enable ssh over wlan and finally connect wirelessly.
If you wish to get it working on Windows check out the channel below, it has some pretty good tutorials that might still work:
https://www.youtube.com/watch?v=ux2cEEtCR1g
