libretro-thumbnails VS EmuELEC

I've been trying to pretty up my collection by making sure everything is validated and has the appropriate boxart. About the only things i've had problems with are the Sharp X86000 and NEC-PC98. These have named boxarts/etc found in the libretro git but I can't seem to find any corresponding dat file to link any particular romset with the retroarch database. Has anyone else dealt with this?

I tested this in Chrome with the entire Sega Mega Drive collection (2075 images) from libretro-thumbnails and it took about 5 minutes on my ageing laptop.

On my RetroArch on PC based on Linux the thumbnails are in a subfolder named "thumbnails" in main RetroArch folder. Each system has folders as "Named_Boxarts", "Named_Snaps" and "Named_Titles". Manually downloads could be done in example at https://thumbnails.libretro.com/ or one of the repos in https://github.com/libretro-thumbnails?q=mame&type=all&language=&sort= or in one of the the subfolders in https://github.com/libretro-thumbnails/libretro-thumbnails

I know this one, if that is what you mean: https://github.com/libretro-thumbnails On this page if you click "libretro-thumbnails" and then "MAME" in example, then it is a bit older than if you go straight to the "MAME" repository itself. I guess one is the master that collects all other repositories after a while. But that's just my theory. As far as I know is this the official thumbnails repository for Libretro/RetroArch.

Retroarch just matches console and game name to the artwork it stores on its own github page.

If you'd like to submit the ones you've collected, you can send a pull request to https://github.com/libretro-thumbnails/libretro-thumbnails

Also for artwork check https://github.com/libretro-thumbnails/libretro-thumbnails

Considering Chocolate and LZDoom, both can work but what you would want is LZDoom for .pk3 files. There should be a guide here.

Ships with EmuELEC 4.3. Should I be upgrading to the latest version (currently 4.6) or leave it at 4.3?There seems to be a lot of bug fixes and stability improvements in the 4.6 update but I'm not sure if they would be a benefit to the "if it ain't broke don't fix it" 4.3.

Here is the direct link to the correct EmuELEC 4.3 version for the Arcade Box: https://github.com/EmuELEC/EmuELEC/releases/download/v4.3/EmuELEC-Amlogic-ng.aarch64-4.3-Generic.img.gz

As far as I know most of those boxes are just using Amlogic processors. You could try installing an emu distro such as EmuELEC on a new MicroSD card and seeing if it boots.

It’s for certain Pi alternatives and Android TV devices: https://github.com/EmuELEC/EmuELEC