Have updated App.config as mentioned in README.md.
When I ran the csproj, after authorising the app to our DevOps site, it still says "Something went wrong".
Can be easily re-produced.
Here's the error:
Message: A configuration issue is preventing authentication - check the error message from the server for details. You can modify the configuration in the application registration portal. See https://aka.ms/msal-net-invalid-client for details. Original exception: AADSTS7000218: The request body must contain the following parameter: 'client_assertion' or 'client_secret'.