Is it possible to use logto sdk directly, without redirects?

[warm-tune]

So the question is - how to use logto sdk directly as a library, to build own authentication based on logto? Without separate UI that I need to create and upload to logto cloud to have seamless login experience with the same UI as in my application.

Or such behaviour is incorrect and should not be used at all?
I just don't see any information about this approach in the documentation.