Explore the process of upgrading the API powering the Gatsby store with additional features in this 2-hour and 16-minute video tutorial. Join Amberley Romo and Jason as they work on creating queries for Gatsby's Swag Store Serverless GraphQL API. Gain insights into the development process, learn about the challenges faced, and discover solutions implemented. Access more details about the project through the provided GitHub issue link and review the work-in-progress code in the pull request. For those interested in watching the development process live, a Twitch stream link is available.