Amikoo needs two things to do its best work for you: context about how your app works, and a place to store the tests it writes. Both come from your code.
You can now connect GitHub directly, in two ways:
Connect one or both. For the best results, connect both the App repo and the Test repo. If your app and tests live in the same repository, you still need to connect that repository in both the App repo and Test repo fields.
Go to Settings > Integrations & Connections, click on Connect on the Github card, authorize, and choose the repos and branches you want.
Once connected, try asking Amikoo something like, "Generate tests for my checkout flow." It will write them directly into your repo, based on how your app actually works.