SEN is a local-first, data-centric solution that directly integrates with the filesystem and offers a linked data-layer within the desktop. Existing data can be seamlessly integrated, navigated and referenced between text files, media and documents. By integrating with the file browser, intuitive semantic navigation and manipulation of local data is guaranteed and seamlessly connected to referenced targets like documents or media files. Users can also look "inside" their files by browsing self-relations like bookmarks in a PDF document, or chapter marks in a video file.

Also, abstract entities are managed as simple files with metadata that can be searched and enriched, like managing a personal book catalog and looking up metadata via ISBN through external services.
Thus, the local filesystem becomes a personal knowledge graph in a self-sufficient open system.