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The Sperm Whale's Deadly Call (2011)

https://www.smithsonianmag.com/science-nature/the-sperm-whales-deadly-call-94653/
1•EndXA•1m ago•0 comments

The Physics Behind the Poo Emoji's Shape

https://nautil.us/the-physics-behind-the-poo-emojis-shape-1282189
1•Brajeshwar•2m ago•0 comments

Paradise Revisited: What Darwin Saw in the Galápagos

https://www.theatlantic.com/magazine/2026/08/writers-way-galapagos-charles-darwin-travel/687480/
1•benbreen•3m ago•0 comments

China overtakes USA with fastest Top500 supercomputer: 2.2 Exaflops

https://www.heise.de/en/news/China-overtakes-USA-with-fastest-Top500-supercomputer-2-2-Exaflops-1...
1•doener•3m ago•0 comments

We Are Heading Towards a 'Two-Tier' Society

https://ror.fm/AI-UBI-consumerism
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Show HN: L0/L1/L2 agents, leases, gates, audits, Git-worktree isolation

https://github.com/alex-reysa/glueRun-go
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Show HN: Stewie Reflect – owner's manuals for repos, with claims linked to code

https://reflect.stewie.sh/
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StegoAd: How We Disrupted a Malicious Extension Campaign

https://microsoftedge.github.io/edgevr/posts/Inside-StegoAd-How-We-Disrupted-a-Massive-Malicious-...
1•soheilpro•4m ago•0 comments

NASA's Cold Atom Lab is creating one of the weirdest forms of matter in space

https://www.sciencedaily.com/releases/2026/06/260622091507.htm
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Zero-Copy Data Movement from NIC to GPU at 100s of Gbps

https://nvidia.github.io/daqiri/
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Treating autism with Bumetanide: Identification of responders using ML

https://www.nature.com/articles/s41398-026-03848-3
1•amai•7m ago•0 comments

Show HN: I built a live index of tech jobs from job boards and career pages

https://livejobindex.com/
2•s_kazmi•10m ago•1 comments

Show HN: Iantha – build your own Jarvis on Claude Code

https://kiloloop.com/iantha/
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A Statement on AI Talks at Hope

https://www.hope.net/a-statement-on-ai-talks-at-hope/
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Built an agent that finds new money from my existing customers

https://www.kyahq.com/
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HTML Text Editor

https://divedit.ilovesuomi25.workers.dev/
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You can't stop scrolling (and what helps)

https://snowscroll.com/blog/why-you-cant-stop-scrolling
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Show HN: Nub – A Bun-like all-in-one toolkit for Node.js

https://github.com/nubjs/nub
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RF Hacking My Cloud-Controlled Ceiling Fan

https://samwilkinson.io/posts/2026-06-24-rf-hacking-dreo
3•sammycdubs•13m ago•1 comments

Show HN: Drip — pay-per-use finance newsletters for AI agents

https://dripstack.xyz/stock-picks
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Phishing for a Group Show – NFT phishing scam in the art world

https://israellund.substack.com/p/phishing-for-a-group-show
1•dronesilence•14m ago•0 comments

How a Computer Should Work

https://pkgdemon.github.io/how-a-computer-should-work.html
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Show HN: Papermill – a document generation engine for AI workflows

https://papermill.io/
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Show HN: Build A Harness – open-source, modular harness layer for AI agents

https://buildaharness.com/
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Nvidia's 45°C cooling design cuts data center water use to near zero

https://blogs.nvidia.com/blog/liquid-cooling-ai-factories/
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Intercept Fund – Eliminating respiratory infection

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Supreme Court Empowers Prison Guards to Violate Religious Rights with Impunity

https://ballsandstrikes.org/scotus/landor-supreme-court-opinion-recap/
1•hn_acker•18m ago•1 comments

Older tech workers are tapping out early. Here's what that looks like

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Show HN: Tecture – A navigable architecture map from your coding agent

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1•shanika•21m ago•0 comments

Flower Labs: AI Is Evolving from Isolated Silos to Collaborative Networks

https://flower.ai/
1•doener•21m ago•0 comments
Open in hackernews

Show HN: YT NoteTaker – Simple Manual Note Taking on YouTube Videos

https://kavinaidoo.github.io/ytnt/
2•kavinaidoo•1y ago
Hi HN,

YTNT is a simple web-app for manually typing notes while watching a YouTube video. Simultaneously type and control playback with keyboard shortcuts. Export to Word (.docx) when you're done.

I'm seeking general feedback.

NOTES:

- The only way to "save" (for now) is to export to a Word .docx

- Speech-to-text only works in Chrome

GitHub: https://github.com/kavinaidoo/ytnt

Blog Post: http://archive.today/FRqwp

Thanks, Kavi

Comments

Leftium•1y ago
I forked oTranscribe and added some features to solve a similar problem.

- demo: https://otranscribe.netlify.app/?vsl=definedefine

- source code: https://github.com/Leftium/oTranscribe

- CLI tool to generate OTR (oTranscribe) files from (YouTube) SBV/TTML files: https://github.com/Leftium/otrgen

In my case, I wanted to start with the (auto-generated) YouTube transcript and get clickable timestamps. This makes it much faster to search through the content of a video: I can read/search much faster than watching a video, even on 2X speed.

I could also add my own notes to the transcript.

If you add support for loading transcripts like this, it could work cross-browser without the microphone/speech-to-text.

kavinaidoo•1y ago
Aha, starting with the YouTube transcript is a great idea. I wanted to start with it but I couldn't find a way to get it from the YouTube iFrame API so I went with the Web Speech API to listen and convert.

Forgive me for the confusion, the demo link implies that the transcript is loaded from the video but I see in the code that there's a pre-existing "/txt/definedefine.md" that is loaded. How are these SBV/TTML files downloaded from YouTube in the first place? I assume that it is a separate process? I see you are then using otrgen to presumably convert these so they can be used by oTranscribe.

If I could load the transcripts dynamically when loading the YouTube video that would be a great feature.

Leftium•1y ago
The demo simply demonstrates how I used my tool. It requires some manual set up:

- TTML files are downloaded via CLI: `yt-dlp.exe --skip-download --write-auto-sub --sub-format ttml`

- TTML files are converted to the OTR .MD format via my CLI tool

- The MD file can be dragged & dropped onto the web app.

---

I think it is possible to download SBV/TTML files, but the download must be done from the server due to CORS restrictions.

My app didn't go this far due to limitations of the (serverless) platform it is hosted on. Also it was faster to just do the steps manually vs. developing a server that does it.

I have seen many services that download the transcript. Here are a few:

- https://youtubetranscript.com

- https://kagi.com/summarizer

- https://www.tubepen.com

However, note YouTube may block your server if you download too many transcripts: https://kagifeedback.org/d/4451-universal-summarizer-cant-fi...

kavinaidoo
Leftium•1y ago
I'm planning a beat-aware YouTube player. Unfortunately, it is not possible to access the audio stream data across the YouTube embed. (For beat-detection analysis.)

I considered using the microphone like this. It's nice to see it works. Although there seems to be a time limit to how long the microphone can record?

My plan was to download video (youtube-dlp), then make a CLI tool that analyzes and uploads the beat-detection data. An advantage of the CLI tool is it can complete the analysis faster than playing the video at 1X.

kavinaidoo•1y ago
Yeah, I also wanted to "pipe" the audio directly to the Web Speech API but had to resort to using the mic. Another feature I wanted to add was to have a keyboard shortcut insert a screenshot of the video into the notes. Handy for diagrams etc but I hit some roadblocks there too and the workarounds were getting crazy.

Regarding the time-limit, I'm entirely accessing the audio stream using the Web Speech API and it "decides" (usually when there's a sufficient pause) when to finalize a recognition result. It was also firing a "recognition.onend" event after a certain amount of time (some old details here: https://stackoverflow.com/questions/38213580/chromes-webkits...) so I have a workaround where if the user did not turn off speech-to-text, it is immediately restarted. You'll see console warnings "userStopped == false - trying to restart" when this happens.

I assume you'll have no such issues because you'll be handling the "raw" audio data and not working through this API. Also, I've noticed that when using the Web Speech API on Safari, it does not "hear" what the tab is playing. It only hears external audio. I'm not sure whether this will be an issue for you but for me it means my app is Chrome only (suboptimal). Forgive me for my naïveté in this arena, It's the first time I'm using any browser audio API.

Would your tool run on a server and work with a frontend for YT link ingestion or will you just use it yourself from the cli?

Leftium•1y ago
•
1y ago
I think I'll just have to stick with my current method for now, looks like the only way to get it done with static hosting.
Ideally, my tool would run on the server. Especially if I wanted to monetize the service. (However I think there may be legal issues that are larger than the technical ones...)

However it's just a small hobby project. So realistically I think this is how it will work:

- If user tries to load a video without beat data yet, instructions are shown for how to add the beat data. The instructions will be running CLI command like `npx upload-beat-data [YOUTUBE-URL]`

- The CLI tool will download the audio, then upload the beat data to my site.

- The site will also log which videos got a lot of requests, but are missing beat data. So I can manually add the beat data myself.