Here’s some more info on Cloud Setup, specifically notifications:
So, for those looking to set up OpenHAB-Cloud notifications, here is a quick summary of what needs to be done.
Jid = Your_Sender_Key@googleapis.com
Password = server key
I don’t know if the legacy server key will work, I used the server key from Firebase console, also make sure you use the keys on the “Cloud Messaging” tab!
Before compiling habdroid"
Change OpenHABMainActivity.java line 145 and 1201 to match your system.