I tried this:
https://forum.recalbox.com/topic/7331/amiga-cd32-emulation-how-to/6

Amiga CD32 emulation successful but how can I save? I press F12 keypad and i get uae4arm emulator, i try to save the game from the savestate menu but i will not work and i come back to the game. Missing configuration files for this: Nvram.nvr and how do I get the games saves? ,sorry poor English

Raspberry Pi model: Pi 3 B
•Recalbox version (build) : "unstable" 4.1 build 42

I tried this:
https://forum.recalbox.com/topic/7331/amiga-cd32-emulation-how-to/6

Amiga CD32 emulation successful but how can I save? I press F12 keypad and i get uae4arm emulator, i try to save the game from the savestate menu but i will not work and i come back to the game. Missing configuration files for this: Nvram.nvr and how do I get the games saves? ,sorry poor English

Raspberry Pi model: Pi 3 B
•Recalbox version (build) : "unstable" 4.1 build 42

I did exactly according to the instructions, but the game does not start, the black box is for a while and then goes back to the home screen, what's wrong with it?

Raspberry Pi model: Pi 3 B
•Recalbox version (build) : "unstable" 4.1 build 42