Stardew Valley Ps4 transfer memory state to switch?

Can you somehow transfer the memory from Stardew Valley on the PS4 to the Nintendo Switch?

And a second question is, if you can have an account on two Nintendo Switch? So you do not have to buy every game 2x…

I do not think that it is possible to transfer the memory. And in my opinion, owning an account with 2 switch should not be a problem.

So that with your ps score will not be possible, but you can use with your nintendo account, of course, several switches.