I'm not sure what you mean by wrapper script, but you can change the binary the game downloads by replacing koboldUrl in AppData\LocalLow\Three Eyes Software\Silverpine\settings.json. In your case the Cuda11 + AVX1 version should work.
"koboldUrl": "https://github.com/LostRuins/koboldcpp/releases/download/v1.103/koboldcpp-oldpc.exe", "linuxKoboldUrl": "https://github.com/LostRuins/koboldcpp/releases/download/v1.103/koboldcpp-linux-x64-oldpc",
If you're on Windows, the game should also detect any already running Kobold process before the setup dialog and start communicating with it on port 5001. In that case, the game will assume the Kobold process it detected is running the last selected local model, so confirm that modelName in settings.json is correctly set to "Nemo" or "Mistral-Small-3.2".