I did what appeared to be a successful install of pocket2rm. I received the expected success message from the installer, ~/.pocket2rm exists, and my RM2 has a "pocket" folder with the file that says "Remove to Sync"... however, if I remove that file, nothing syncs, and my RM2 reboots.

Thoughts on how to debug this?

Possibly useful notes:
Remarkable firmware version 2.6.2.75
Built on my NixOS laptop with Go version 1.16.3
SSH to the RM2 confirmed working with key-based auth.