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Ask HN: How do you cope with AI being used to target and bomb children?

1•trumbitta2•1m ago•0 comments

Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price war

https://simonwillison.net/2026/Sep/22/opus-and-sol-and-luna/
1•theanonymousone•3m ago•0 comments

Show HN: Semantic Search for Zotero Local

https://github.com/ilDon/zotero-semantic-search
1•ildon•4m ago•0 comments

Show HN: Listen to your eBook and control the playback sentence by sentence

https://documentplayer.com/
1•janpmz•4m ago•0 comments

GPT-6 Sol and Luna push the cost efficiency frontier by halving token cost

https://artificialanalysis.ai/articles/gpt-6-sol-and-luna-push-the-cost-efficiency-frontier
1•theanonymousone•6m ago•0 comments

Observe – local semantic code search that admits when grep beats it

https://github.com/tritsystem/012-trit-search
1•gbranaa4•13m ago•0 comments

NobodyWho is an inference engine that lets you run LLMs locally and efficiently

https://github.com/nobodywho-ooo/nobodywho
1•Bluestein•16m ago•0 comments

Show HN: I built a site for my 42 km walk across 30 Tokyo stations

https://yamathon.tonymanh.space
1•tonymanh•17m ago•0 comments

Taming the ML Firehose: Scaling Feature Consistency

https://www.uber.com/us/en/blog/taming-ml-firehose/
1•iamsyr•17m ago•0 comments

Tearing Down a Spring Drive

https://www.thenakedwatchmaker.com/decon-seiko-snowflake
1•stefanv•19m ago•0 comments

New AI technique could make minimally invasive surgeries safer and more precise

https://news.mit.edu/2026/new-ai-technique-could-make-minimally-invasive-surgeries-safer-more-pre...
2•ycombinatronics•22m ago•1 comments

Rebranding artificial intelligence as super intelligence

https://www.bbc.com/news/videos/c8n5d9x10v14o
2•tin7in•22m ago•1 comments

Jev in 25 Lines of Python

https://www.nobodywho.ai/posts/jev-in-25-lines/
2•bashbjorn•23m ago•0 comments

Nvitop: A better top for Nvidia GPUs

https://github.com/XuehaiPan/nvitop
1•Nina_antalpha•24m ago•1 comments

Aesthetic Terminal ePub Reader

https://github.com/UsboKirishima/rr
1•333revenge•28m ago•0 comments

Gemini Hacked Three Companies in First Known Breakout by Google's AI

https://simonwillison.net/2026/Sep/18/gemini-hacked-three-companies/
2•coffee•29m ago•0 comments

Linux Command Line Tricks that you do not know yet

https://lovethepenguin.com/
1•torgeros•38m ago•0 comments

Show HN: Newdo – a todo list where the list is an output, not an input

https://newdo.beaverminds.com
1•shaanjus4u•39m ago•0 comments

Grit your teeth and ship it

https://www.seangoedecke.com/grit-your-teeth-and-ship-it/
1•coffee•40m ago•0 comments

Discourse (open source forums) adds Discord-style voice and video calls

https://meta.discourse.org/t/voice-discord-style-voice-and-video-rooms-now-bundled-with-discourse...
1•Scaled•40m ago•0 comments

Recursive self-improvement of AI research agents

https://arxiv.org/abs/2609.26457
1•sbulaev•42m ago•0 comments

Show HN: Analysis of Games from Chess Olympiad with Opus 5.5 and Stockfish

https://olympiad2026.unremarkable.info/
1•myle•47m ago•0 comments

Microsoft disrupts AI-assisted platform that compromised 12,000 accounts

https://arstechnica.com/security/2026/09/microsoft-disrupts-ai-assisted-platform-that-compromised...
6•joozio•48m ago•0 comments

Why Tool AIs Want to Be Agent AIs

https://gwern.net/tool-ai
1•duck•53m ago•0 comments

Fearless SIMD v1.0 is here

https://linebender.org/blog/fearless-simd-1-0/
1•AndrewDucker•53m ago•0 comments

M6 Mac Mini uses soldered NAND storage again

https://www.macrumors.com/2026/09/22/new-mac-mini-ssd-cant-be-removed/
2•gloxkiqcza•53m ago•0 comments

Show HN: Yass – Yet Another Spec Syntax Enters Beta

https://github.com/shakefu/yass
1•bilbo-b-baggins•53m ago•1 comments

Building a docs site that screenshots itself

https://semaloop.com/blog/docs-that-screenshot-themselves
1•samstarling•58m ago•1 comments

There is no epidemic of loneliness, but there is an epidemic of scurvy

https://www.experimental-history.com/p/there-is-no-epidemic-of-loneliness
1•luu•1h ago•0 comments

Claude Code Hooks Explained: The Deterministic Layer Around Your Agent

https://blakecrosley.com/blog/claude-code-hooks-explained
1•northbridgedev•1h 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.