Emulators

I am trying to set up emulators on this set up. I do not believe that I have the paths defined accurately - I only downloaded a MAME so far and 1 game as a zip and basically for 3 days it keeps saying rcm rmc whatever scraping. I believe I set up the path the emulator accurately however I could be wrong. Can you please tell me the correct way to set up the emulators?
Master Server is running EMBY and I do have games loaded and the directory for the roms in place.
Salves can be PCs or Raspberry PIs running OSMC or Kodi which is basically the same thing.

Also once I have my master server/ HTPC configured to my needs can I clone it to the rest of the clients rather than having to add redundancy to it all.

Take a look here [HowTo] RetroPie and OSMC: Retrosmc - Retrogaming on OSMC - #515 by exobuzz

Might wanna search the forums before posting since there are alot of creative people here doing amazing jobs :wink: