T-Libra — a multifunctional digital library system for creating advanced electronic collections with semantic full-text search and modular extensions. I was responsible for backend development, search indexing, UI implementation, thesaurus integration, and distributed library architecture. Key features included: • Customizable topic-based full-text search • Metadata conversion from electronic catalogs (ILS/OPAC) • Distributed library support for multi-institutional access • Semantic tagging via integrated thesaurus • Support for multimodal content (documents, images, audio)