The video below demonstrate how a Microsoft partner can publish a Transactable Offer

Transactable Containers Labs, Lab 1, part 1: Creating and running containers locally

Transactable Containers Labs, Lab 1, part 2: Deploying the Containers

Transactable Containers Labs, Lab 2: Creating a CNAB Bundle

Transactable Containers Labs, Lab 3: Publishing the Container Offer