This page:
https://docs.airbyte.io/contributing-to-airbyte/building-new-connector contains the basic requirements needed to spin up a connector
This page:
https://docs.airbyte.io/tutorials/toy-connector runs through an example of building a connector start to finish. It’s not 100% how you’d build a connector since it doesn’t follow best practices (just to make the tutorial easier to follow) e.g: it puts everything in one file and uses only the standard python lib. But we’re more than happy to provide all the needed support/Q&A to make any connector you build follow these best practices.