Ravenote

What it does

You watch 40 hours of Udemy and YouTube. You remember 10%. Ravenote captures every lecture, quizzes you with spaced repetition, and keeps what you learn in your head. Free Chrome extension.

• IC
  I combined spaced repetition with emails so you can remember anything2024 · ginkgonotes.com · ▲244

  Hey HN, I am a student shipping apps in my free time. This is my 4th for the year! Non-fic books and podcasts have been part of my life for years now but I always struggled with remembering what I’ve read or listened to. I wanted it to stick even after years. My notes list grew large but I never really revisited them. That’s why I created GinkgoNotes. You can enter notes you want to recall and leave it to the app to create a personalised (based on spaced repetition) email schedule. That means you’ll get your notes emailed to you a couple of times exactly when you should read them again…

• AD
  Anki/Duolingo-like app using educational YouTube videos2024 · platoedu.org · ▲289

  Hi HN, I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory. Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!

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  Mochi2019 · ▲212

  Take notes in markdown, review them with spaced repetition

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  FlipToMind2018 · ▲86

  Space repetition app to help you remember everything

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  SmartCards+2020 · ▲99

  Learn faster with spaced repetition

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  memordo2020 · ▲118

  Spaced repetition tool to help you retain more knowledge

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• NW
  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

• FM
  Files.md – Open-source alternative to Obsidian▲730

  Dev tools · May 2026 · github.com