Insights and Lessons from Phoenix Framework Development

Chris McCord's keynote delivered at ElixirConf 2023 in Orlando covered his journey and lessons learned while working with the Phoenix Framework, especially when integrating with a team of developers new to Elixir or coming from different ecosystems. His talk dove into Fly.io's use of Phoenix and LiveView, how long-poll fallback became a necessity for resilience, and the challenges faced when adapting to production needs, leading to various enhancements in Phoenix. Furthermore, Chris detailed the development of new functionalities in Phoenix such as assignment async primitives and upload writers, and discussed the practical use of Elixir for clustering and distributed computing, debunking misconceptions about its limitations in spanning networks or regions. Lastly, he demonstrated developer debug tools that have significantly improved the developer experience working with function components in Phoenix.