Receive-only Wi-Fi and Bluetooth LE observer for Android
Termux X11 add-on application
A build system and primary set of packages for Termux
Blynk library for embedded hardware
Libre 2+/3+, Sibionics GS1, Dexcom G7/1+, Accu-Chek, CareSens Air APP
Simply explore your Android phone!
A cross platform debugger for serial port/Bluetooth/TCP/UDP
Backend implementation for the Apple/Google exposure notification API