Neon Local is a proxy service designed to facilitate the creation of ephemeral environments using Docker, which allows for temporary, non-persistent database branches that automatically create and delete with each container's lifecycle. This service enables developers to maintain CI-friendly branching by handling the automatic creation and removal of database branches during test runs, supports local development by streamlining branch management without manual configuration, and ensures consistent connectivity by routing applications through a local Postgres endpoint. Although Neon Local is not a local Postgres instance, it offers advantages over traditional local setups by preventing environment drift and simplifying the process of spinning up production-like environments. It supports various configurations, including setting a parent branch ID or deciding whether to delete branches upon container shutdown, and future features may include the ability to assign meaningful names to branches and an offline mode for local database dumps and restores.