Great! So do I understand it right that it solves warehouse installation/upgrade path? So the dependency will be picked up and pulled automatically?

For DevConnection I've added pin-ops handlers (which are not doing anything except dumping the pin into logs - requires proper timeline implementation) and PhoneLog - with phone log we can now collect daemon logs using pebble sdk command (pebble logs --phone jolla).
I'm not committing it yet because I found some race conditions due to the fact that service is enabled in dbus thread and running in app thread - so it segfaults under certain conditions. need to wire up all calls properly via queued connect and probably put some mutexes for syncbox calls.