$ ./bin/remarkablectl info
Model:     reMarkable Paper Pro
Firmware:  3.25.1.1
OS:        Codex Linux 5.5.125 (scarthgap)
Serial:    XXXXXXXXXXXXXXXX

$ ./bin/remarkablectl status
Host:       10.11.99.1 (default)
Auth:       key + password
Config:     /Users/adamstacoviak/.config/remarkablectl/config.json
Connection: connected
Model:      reMarkable Paper Pro
Firmware:   3.25.1.1
Xochitl:    active
Documents:  24 documents, 2 folders