[Jachin99]

I'm trying to solve this same issue, and coming up short because no matter how I do this, AEL can't find any roms.  I believe I have added my games folder as a SMB network location.  I used the kodi file manager, and added a source like this SMB://MyGameFiles.  I use that as my game source but AEL still can't find roms.  Would there be any advantage to sharing that folder of NFS rather than SMB?  Is there some other solution?  I'm using a shield TV pro.

The problem is that Kodi can access files in remote filesystems. However, AEL (and most emulators launched) require that the remote filesystems are mounted so they look like local filesystems. @chrisism uses some kind of trick to work around this issue, he has told me many times but now I cannot remember. @chrisism can you please help?

Well, since we are talking about the Shield which works for me, it should be something for @Jachin99 too. Lets have a go.
So first off, no, you don't need to use NFS. The default SMB share works perfectly fine. But, you need to access the shares in 2 different ways. One way is so through Kodi, the other way is through the Android filesystem.The kodi shares are the ones you already have and know, the Android shares should be mounted first.

Mounting shares on Nvidia Shield: https://www.androidcentral.com/how-mount...-shield-tv
Remember, you can use the exact same shares from the remote system. It´s only a different way of connecting.

Why 2 ways? Well the mounts are meeded so that other Android apps (like the emulators) can actually access the rom files, since they don't use the build-in filesystems from Kodi, but that from Android.
But the mounted shares are always readonly, so you still need the Kodi smb share so AEL can access and write all metadata (nfo's, covers etc).
When setting up your launcher, make sure that you use the Android mounted shares when setting the path to the ROM folder and use the Kodi SMB mappings when selecting the asset folders.

Good luck, let me know if it you get it to work.

Wow, I just saw this response so sorry if it seems like I blew off your help.  I have added my remote windows share via the shield settings menu, and I have manually added my game source in Kodi via the add source button in the games menu.  My has been that when I try to browse to that share (the one added via the games menu) while setting up AEL, it isn't listed on the menu of available sources.  I tried adding my smb games source via the kodi add sources menu, and that let me browse my smb games share but when I get all the way to the end of setting up my launcher where I choose my rom locations (I think), I get an error when I select that location.  On the source machine I have SMB1, and password protected sharing disabled.  I'm attaching a quick log, and I can enable additional logging if needed.  I'm still getting a feel for andoroid TV so I apologize for any mistakes.

I'll keep trying, and after peeking at this log, it looks like its still a read only error but any help is appreciated.  https://pastebin.com/i3q18XrS