Repeater-START (Showing The Amateur Repeaters Tool) is an app to view nearby ham radio repeaters.
It runs on Windows, Android, Ubuntu Linux and Raspbian for Raspberry-pi, Librem Phone, Pinephone/Manjaro Linux etc.
Notifications to phone from Raspberry PI for GPIO connected devices
This software is for delivering push notifications to remote devices such as smartphones and tablets from a Raspberry Pi when the Raspberry Pi is connected through its GPIO pins to a device which holds a relay or electronic switch temporarily closed when activated. An example of such as device is a Dakota Alert break beam sensor.