Lineage OS is an open-source operating system which can be used in Android Smartphone, set-top boxes, and computers. This operating system is the successor of the open-source operating system or custom ROM CyanogenMod. It was forked from CyanogenMod\’s source code when it announced as discontinued. Lineage OS was launched in December 2018. The development builds now covers more than 185 mobile phone models. Furthermore, Lineage is one of the most popular Custom ROM with over 1.9 million active installs.
Get the Source code on Github