... but the site I used for roms has been taken down ...
I don't suppose you stopped and asked yourself why ...
Isn't it Okay to Download Nintendo ROMs for Games that are No Longer Distributed in the Stores or Commercially Exploited? Aren't They Considered "Public Domain"?
No, the current availability of a game in stores is irrelevant as to its copyright status. Copyrights do not enter the public domain just because they are no longer commercially exploited or widely available. Therefore, the copyrights of games are valid even if the games are not found on store shelves, and using, copying and/or distributing those games is a copyright infringement.
Pretty much says it all right there.
Retired IT professional, C programmer and "beardie weirdie".
RPi interests: Developing an Infinite Improbability Drive
“Thinking outside of the box allows you to get rewards outside of your reach.” Matshona Dhliwayo