I really think the only way forward long-term is to build on hardware with mainlined drivers. This is so far outside the norm in the mobile ecosystem though tha

I really think the only way forward long-term is to build on hardware with mainlined drivers. This is so far outside the norm in the mobile ecosystem though that it's a huge uphill battle to get something working even passably. Purism and Pine64 have made great strides in that regard though.