Show HN: A Mac native app that helps you reason through math/CS pdf textbooks
By alricsiu · 2026-09-18 · 1 points · 0 comments
https://marginstudy.lemonsqueezy.com/checkout
https://marginstudy.lemonsqueezy.com/checkout/buy/b71656b9-b... url seems malformed The core concept is a tool to let users think through every word, sentence and line of dense technical textbooks in pdf form. I can't find a single app that allows you to…
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