Trelk is a privacy-first knowledge management tool that keeps all your reading in one place and actually helps you make sense of it. Save articles, research papers, PDFs, YouTube videos, and your own notes — on-device AI automatically summarizes each item, applies tags, and discovers non-obvious links between pieces you've collected over time. The connection discovery is the core differentiator: rather than a passive library, Trelk actively maps relationships across your knowledge base as it grows. You pick the AI backend — wire it to a proprietary LLM you already use, or run open-source models locally via Hugging Face. There's also a community layer for browsing and sharing curated content collections. Everything is stored in open formats. No account required, no usage tracking, no recurring fee — one purchase, permanent access.