Tic-80 Tiny Computer
tic.computer
tic.computer
[0] https://github.com/nesbox/TIC-80/tree/master/build/n3ds
[1] https://github.com/nesbox/TIC-80/releases/tag/v0.80-beta
The other reason I wouldn't call it a clone is because historically speaking (as I understand it at least) "clones" in the context of computers and consoles are referring to hardware that is compatible with the platform that they are cloning. A Mac clone could run Mac software, and IBM PC clone could run IBM PC software, etc.
Since that is not true here (all these fantasy consoles are incompatible), they wouldn't fit that part of the (historical) definition of clones in a computer context - which I would consider the most appropriate one for something that is supposed to be an impressionist idea of a console platform.