eelo is a Android-based mobile operative system that is currently being worked by the father of famous GNU/Linux distro Mandrake, Gaël Duval.
The mobile OS aims at creating a desirable, privacy-enabled and open source mobile operating system, and associated web services, such as cloud and mail.
Is not based on the typical AOSP, choosing to work on top of LineageOS instead.
Read more about it and check the official Kickstart here. The project has already been funded, with still 24 more days to go.