Lena Jensen developed two core features for the gautschr/3D-modelling repository, focusing on integrating Pharos IIIF manifests and implementing a robust file upload mechanism. She enabled seamless ingestion and delivery of diverse assets, including GLB models, thumbnails, and PDFs, by wiring JSON metadata and establishing manifest scaffolding. Her work involved repository hygiene, such as updating .gitignore and cleaning legacy assets, to ensure maintainability and prepare for future Paradata integration. Utilizing JavaScript and JSON, Lena improved content delivery reliability and extensibility, demonstrating a methodical approach to asset management and metadata consistency within a short, focused development period.