The Alfresco Content Application (ACA) is a production-quality Angular single-page application serving as the reference frontend for Alfresco Content Services (ACS). It provides enterprise content management capabilities including file/folder browsing, search with saved searches and faceted filters, document preview and versioning, sharing, favorites, trash management, library management, and folder-based automation rules. The application is built as an Nx monorepo with multiple distributable libraries (aca-content, aca-shared, aca-playwright-shared) and follows an extension architecture that allows plugins to add custom actions, evaluators, routes, and sidebar panels. State management is handled by NgRx, and the UI leverages Angular Material and the Alfresco Development Framework (ADF). Extensive end-to-end tests are implemented using Playwright, with shared page objects and API wrappers for maintainability. The codebase is actively maintained with frequent releases and a well-defined version matrix tracking compatibility with ADF, ACS, Node, and Angular versions.