Below are the resources on renunciation Mark mentions in the opening of the talk:
https://docs.google.com/document/d/1JolUrzOX8ESARJcK1VpW9E70Ff0vZx9agawRowDtJnE/edit?usp=sharing
https://docs.google.com/document/d/1Ohn3k_urMZaVwDQtaQ4ZArWtn8scVk2ONpT-7lPpONM/edit?usp=sharing
https://docs.google.com/document/d/1JolUrzOX8ESARJcK1VpW9E70Ff0vZx9agawRowDtJnE/edit?usp=sharing