So #JeriEllsworth is the OG at FPGA-based retro emulation, proving the concept way back in 2002 with the C-one SBC, produced in limited quantities.

https://en.wikipedia.org/wiki/C-One

In late 2004, an ASIC-based C64-in-a-joystick with 30 licensed C64 games preinstalled called C64 Direct-to-TV was released, also by Jeri Ellsworth:

https://en.wikipedia.org/wiki/C64_Direct-to-TV

I'm hugely inspired by Stefany Allaire and the #Foenix F256K computer-in-a-keyboard:

https://c256foenix.com/product/f256k/

If you want real tactile feel, buy hers.