Overview of the Phoenix.Sync library for real-time data synchronization

The presentation recorded at ElixirConf EU 2025 introduces Phoenix.Sync, a new library aimed at enhancing real-time data synchronization in Phoenix applications that are supported by Postgres. In the realm of modern software development, synchronization has become crucial for creating responsive, collaborative applications, particularly those that utilize low-latency AI. The talk details how Phoenix already offers robust state transfer mechanisms, but highlights the need for improvements in areas like partial replication and data delivery. Phoenix.Sync strives to address these challenges, integrating familiar APIs to allow seamless data syncing across both backend and frontend applications, including mobile. The speaker shares key takeaways about the library's functionality and offers insights into the types of applications that can benefit from real-time synchronization in Phoenix.