Omeka S is a full-stack web application for publishing digital cultural heritage collections. Built on the Laminas (Zend) MVC framework with Doctrine ORM, it provides a comprehensive admin interface for managing items, media, item sets, vocabularies, and sites, along with a RESTful JSON-LD API. The system supports linked data (RDF/OWL), IIIF viewers, full-text search, and a plugin/theme architecture for extensibility. It is a mature, well-structured codebase with clear separation of concerns (MVC, adapters, representations, services) but shows signs of technical drift from its Laminas foundation and outdated frontend dependencies like jQuery and CKEditor 4.