A GIST with good instructions/how to. Follow the steps until #8, but don’t paste in the following code block; instead scroll down a bit until you see Alternatively, this code can be used to save your tokens as a JSON file, and then paste in THAT code block. That should get you a json file with TOTP credentials ready to import to another FOSS authenticator. I like Aegis and it can import that json file from step 1.