Arcade pi home is good, use a 32Gb Card, Â then extend the SD Card capacity in retropie. Then transfer your working .adf/uae/zip amiga roms into the Amiga roms directory. It uses the uae arm.
when in game, and wants to exit to the menu, press f12, then quit. You can also manually change floppy disks using f12. Hereâs a guide :Â https://fs-uae.net/keyboard-shortcuts
you also need a keyboard and mouse, I use a wireless set using a simple Bluetooth dongle.