{"slug": "show-hn-reading-assistant-physical-books-meta-raybans", "title": "Show HN: Reading Assistant Physical Books Meta RayBans", "summary": "A developer created 'Lumos', a voice-activated reading assistant for physical technical books that integrates with Meta Ray-Ban smart glasses. Users upload a PDF of their book and ask questions via voice, receiving answers based on the book's content without needing to switch contexts. The tool is in early beta but the creator finds it indispensable.", "body_md": "Reading technical books is hard. Unknown words, confusing phrases, and misunderstood concepts requires opening your phone, starting Claude, and working with Sonnet through a series of exchanges, before finally getting it.\n\nFocusing back on reading after such a context switch can be difficult. Repeated multiple times and your attention span is gone.\n\nFix: An assistant understands your book deeply and answers inquiries through voice while you read, side-stepping the current process entirely.\n\nAll you have to do is: - Upload a PDF version of your physical book and start reading - Say \"Hey Lumos\" along with your inquiry (\"why does det(A) mean the matrix loses volume?\") - Assistant researches the contents of the book and responds - Continue reading until you need help again\n\nIt's in extreme beta but works well enough where I can't read a book without it. If you're interested in trying it out, reach out.\n\nComments URL: [https://news.ycombinator.com/item?id=48780578](https://news.ycombinator.com/item?id=48780578)\n\nPoints: 1\n\n# Comments: 0", "url": "https://wpnews.pro/news/show-hn-reading-assistant-physical-books-meta-raybans", "canonical_source": "https://news.ycombinator.com/item?id=48780578", "published_at": "2026-07-03 22:07:46+00:00", "updated_at": "2026-07-03 22:19:43.341518+00:00", "lang": "en", "topics": ["ai-tools", "large-language-models", "ai-products"], "entities": ["Lumos", "Meta Ray-Ban", "Claude", "Sonnet"], "alternates": {"html": "https://wpnews.pro/news/show-hn-reading-assistant-physical-books-meta-raybans", "markdown": "https://wpnews.pro/news/show-hn-reading-assistant-physical-books-meta-raybans.md", "text": "https://wpnews.pro/news/show-hn-reading-assistant-physical-books-meta-raybans.txt", "jsonld": "https://wpnews.pro/news/show-hn-reading-assistant-physical-books-meta-raybans.jsonld"}}