Gotify-Notifications
Keep your Staff informed via Pushmessages on their phone.
You just need your own Gotify-Server which could me deployed via Docker. There are also some other options how to get your own Gotify-Server.
Features of Gotify-Notifications
Custom GOtify-instance
This Module supports custom hosted Gotify-Instances. With this, you never will get problems with your Privacy Policy
Custom Priority
With this feature, you can choose on every notification rule a custom priority. So you are able to choose, how important this alert is for you.