8 bit computers

Just wondering if there was any plans to bring 8 bit computers to retroarch such as Commodore C64 Acorn BBC ZX spectrum and Amstrad.

Some of them like amstrad & msx already exist , but are wIP. another pb is for android port we don’t have for now a way to use a virtualkeyboard based on a overlay. (that would be nice )

I thought keyboard might be an issue with android.