There I copied the file from my computer onto my RetroPie by drag and drop it in the Ports folder.
Then try:
python3 ~/RetroPie/roms/ports/main.pyOr if you've put it in a subfolder,
python3 ~/RetroPie/roms/ports/subfolder/main.pyContributions to the project are always appreciated, so if you would like to support us with a donation you can do so here.
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