In case you want a non-google based way to sync the device that's not bound to having it on usb, you can use one of these options:
  * [[https://github.com/ddvk/rmfakecloud|rmfakecloud]]
  * [[http://www.davisr.me/projects/rcu/|rcu]]
  * [[https://www.reddit.com/r/RemarkableTablet/comments/atkrs7/rsync_on_remarkable/|rsync]] ([[https://gist.github.com/kayodelycaon/1d3f2d5c62e33a6cecdbb814f0c84951|example]])