I am working on an application that requires GitHub authentication. I want to set up and test GitHub OAuth without having a public URL and any callback URL yet (I will publish once development is done). I also want to know how this setup compares with Google OAuth and what information I can retrieve from GitHub. Additionally, I need clarification on GitHub API rate limits, specifically the 15,000 requests per hour for OAuth apps. I’m still learning and would appreciate any advice. Thanks in advance for your help!