Replit has integrated Nix into its platform, enabling all new repls to be powered by it, which allows for significant enhancements in language support, development tools, and package management. This integration facilitates the creation of templates for unsupported languages, faster package management for Python, and improved code analysis for various languages, among other improvements. The transition required rebuilding existing configurations and exposing numerous configuration options to users, allowing advanced customization without needing Replit employee intervention. The .replit configuration file has been expanded to support dynamic configuration, and a template publishing flow has been developed to showcase and manage templates, enabling community-driven management of popular languages and configurations. While new repls utilize Nix, older ones may still use Polygott, with plans for eventual migration to Nix.