Official Android implementation of a modern two-factor authentication
A free, secure and open source app for Android
A complete web-based remote monitoring and management web site
Source code for 2FAS Auth Android app
SikkerBox is a secure two-factor authentication (2FA) application, etc
Connect your devices into a secure WireGuard-based overlay network
FIDO® Certified StrongKey FIDO Server (SKFS)
ESP32 mySQM+ Sky-Meter/Weather Station with loads of features
Open source two-factor authentication for Android