LineageOS

LineageOS is a free and open-source software operating system for smartphones, tablets and computers.^[1]

LineageOS

Developer	LineageOS open-source community
Written in	C (core), C++ (some third party libraries), Java and Kotlin (UI)
OS family	Unix-like
Working state	Current
Source model	Open source with proprietary components
Latest release	LineageOS 21, based on Android 14
Marketing target	Firmware replacement for Android mobile
Official website	lineageos.org