Gatsby Days, initially planned as a virtual event, was transformed into a content series to respect the focus on the Black Lives Matter movement, allowing the Gatsby community to engage with the material at their own pace. The series includes a video by Benedicte Raae, co-founder and senior developer at Lilly Labs, who discusses creating POW!, an encrypted menstrual cycle app. Concerned about data privacy in existing cycle tracker apps, Benedicte used Userbase for end-to-end encryption and Gatsby to build the app as a progressive web application (PWA). The video demonstrates how to integrate user authentication into a Gatsby site using Userbase, with the demo code available on GitHub. Gatsby Days is expected to return in October, with updates available on Twitter, and the community is encouraged to follow developments and participate.