Ember.js Framework Core

Ember.js is a productive, battle-tested JavaScript framework for building ambitious web applications. The `ember-source` package provides the core runtime and build-time components of the Ember framework, including the Glimmer rendering engine and the Ember object model. As of its current stable version 6.12.0, Ember continues to offer a 'convention over configuration' approach, emphasizing stability and developer ergonomics through a structured ecosystem. Releases typically follow a six-week cycle for minor versions, with LTS (Long Term Support) releases provided periodically. Key differentiators include its comprehensive toolchain (Ember CLI), a robust data layer (Ember Data), and a strong commitment to backward compatibility and upgrades via 'editions' and 'octane' paradigms. The framework is designed for applications with long lifecycles, offering features like a strong routing solution, reactive programming primitives, and an opinionated component model.