Librephone aims to close the last gaps between existing distributions of the Android operating system and software freedom. The FSF has hired experienced developer Rob Savoye (DejaGNU, Gnash, OpenStreetMap, and more) to lead the technical project. He is currently investigating the state of device firmware and binary blobs in other mobile phone freedom projects, prioritizing the free software work done by the not entirely free software mobile phone operating system LineageOS.
This makes me happy!
With LineageOS and microG in place a lot of work is already done in terms of having a free and open Android compatible mobile OS.
The FSF is now tackling the difficult part with firmware binaries that seems to stop a lot of phones from being supported.
This will take time, but as long as progress is made this will be awesome in the long run.