I tried this aswell and it works for me, you need to run the comman "npm init -y" in the folder where you want to install Electron first and then run " npm install electron --save-dev". Then you will be able to see the installed node-packages in the folder. If you then follow ffeellights description (and make sure to rightcklick kinky-dungean.app -> show package contents and copy the contents/ressources/app and not just the normal directory with kinky-dungeon.app and kd-mods in it) it should work for you too.