FusionAuth is participating in this year's Hacktoberfest, a global event that encourages developers to contribute to open-source projects. To participate, register for Hacktoberfest and submit PRs to FusionAuth or other repos with the #Hacktoberfest label. This year, FusionAuth focused on its JavaScript and Mobile repositories, adding tags and issues related to the event. The JavaScript repository includes examples of using various frameworks such as Angular, Gatsby, and React, while the Mobile repository features an example with Expo's React Native Quickstart.