Is there any support for non react-native mobile?

I have seen in the docs that this lib already supports react native.

However I want to integrate in a flutter app, and as you are using a webview, I probably just need the correct url.

I noticed that there is a function to generate the url for the webview so maybe you can respond here with an example url?

This is the function name: generateOnRampURL

Here is the search I just done:
https://github.com/search?q=repo%3Acoinbase%2Fcbpay-js%20generateOnRampURL&type=code