Add deeplinking to WebView macOS app (objective C)

Hey there! We have a fully functional WebView-based macOS app. I can provide the source code. The task is to add deeplinking functionality to a WebView-based macOS app using the following format: "myappscheme://url?link=https://www.google.com". When this deeplink is clicked, it should open the specified URL (in this case, "https://www.google.com") in the WebView app on macOS. The scheme name "myappscheme" should be easily replaceable with a different name (e.g. "starapps") as the same deeplinking functionality will be needed for multiple apps. How much time & budget do you estimate for this, if you are interested? :-) Best regards! :-)