Under the channel 'releases-advance' they have a bunch of compatible cores including the formentioned. Here's an invite below to Retro Game Handhelds discord if use discord.

cpc32 (Amstrad cpc) and fuse (zxspectrum) I assume you want. Since it has retroarch built in thanks in part of having RetroRoller built in. Hopefully this can get you pointed in the right direction.

There's no zx spectrum and amstrad cpc folders. Please note Saturn and Dreamcast function like n64, not all titles are playable, however many are as well. The sleep kernel function as also been added, tapping power once is sleep, holding it down is power off. While the rest now all go into one folder as noted above with all the cores. These bios still go into /opt/libretro into their respective core folders. The exceptions that do not use Retro Roller are:Dreamcast, ScummVM, Atari 800, final burn neo (neo geo bios), and blue msx for msx 1 and 2.

This will save you from reading the es config to see which core uses 32 or 64. The bios for all of these now belong in /home/odroid/.config/retroarch and to be safe copy them into retroarch32 as well as they only use a few mb of space. Most of the emus that were cores have been moved to retroarch to allow use of the retroarch menu. Retro Roller from Valadaa48 has been added, this integrates a full retroarch into the build and that has been added to the theme as well, both 64 and 32 bit retroarch are included. Also mame cores by the year have been added. The themes by Travis Wilson have been updated to include the new systems and retroarch. Sega Dreamcast, Naomi, atomiswave, dos, commodore 64, Sega Saturn, and a couple other systems have been added. This build incorporates the base image from Crashoverride, meaning Ubuntu has been updated from 18 to 19. I'm going to type out a brief change log below. Within the next 24 hours RC 2.3 will be available to the public.

Naomi board emulator mac