Hacker News

Show HN: TTSLab – A voice AI agent and TTS lab running in the browser via WebGPU

Hacker News - Mon, 02/23/2026 - 10:52am

I built TTSLab — a free, open-source tool for running text-to-speech and speech-to-text models directly in the browser using WebGPU and WASM.

No API keys, no backend, no data leaves your machine.

When you open the site, you'll hear it immediately — the landing page auto-generates speech from three different sentences right in your browser, no setup required.

You can then try any model yourself: type text, hit generate, hear it instantly. Models download once and get cached locally.

The most experimental feature: a fully in-browser Voice Agent. It chains speech-to-text → LLM → text-to-speech, all running locally on your GPU via WebGPU. You can have a spoken conversation with an AI without a single network request.

Currently supported models: - TTS: Kokoro 82M, SpeechT5, Piper (VITS) - STT: Whisper Tiny, Whisper Base

Other features: - Side-by-side model comparison - Speed benchmarking on your hardware - Streaming generation for supported models

Source: https://github.com/MbBrainz/ttslab (MIT)

Feedback I'd especially like: 1. How does performance feel on your hardware? 2. What models should I add next? 3. Did the Voice Agent work for you? That's the most experimental part.

Built on top of ONNX Runtime Web (https://onnxruntime.ai) and Transformers.js — huge thanks to those communities for making in-browser ML inference possible.

Comments URL: https://news.ycombinator.com/item?id=47123980

Points: 1

# Comments: 1

Categories: Hacker News

Show HN: Restrict Kiro CLI access to your sensitive files

Hacker News - Mon, 02/23/2026 - 10:01am

Hi HN, I published a small open-source wrapper for Kiro CLI that prevents it from accessing your project's sensitive files (secrets, credentials, properties) at the OS level. Feel free to test it, share feedback, or contribute!

Comments URL: https://news.ycombinator.com/item?id=47123175

Points: 1

# Comments: 0

Categories: Hacker News

Misguided Optimization

Hacker News - Mon, 02/23/2026 - 10:00am
Categories: Hacker News

Show HN: I Built an Offline Productivity System That Connects Goals and Systems

Hacker News - Mon, 02/23/2026 - 9:58am

After years of building for companies, I finally built something for myself.

Aura Tracker: Habits & Goals is now live on the iOS App Store.

It's an opinionated productivity system that connects Identity → Goals → Habits → Tasks → Deep Work → Insights → Reflection, all in one smooth coherent flow. I built it because most productivity apps I used felt like productivity tools. Also, I was highly influenced by the multitude of books I read on the topic and wanted to build something for myself where I can put all my learnings into use.

PS: This was kinda on my TODO list for like almost a decade. I quit my job last year to go full solo founder mode. As long as I was employed, I used to keep watching others posting Show HN and kept wondering when my time would come. Now that it has, it feels so good. Just the same kind of joy I felt, when I wrote my first "Hello World" program on Turbo C editor as a kid (long ago).

Not sure how this product would do, but the feeling that I built something that's gonna stay forever on the internet (and hopefully change the lives of whoever uses it for the better) is a feeling that no amount of corporate bonus or RSU's can provide !!

Comments URL: https://news.ycombinator.com/item?id=47123132

Points: 1

# Comments: 0

Categories: Hacker News

The Origins of Agar

Hacker News - Mon, 02/23/2026 - 9:56am

Article URL: https://www.asimov.press/p/agar

Comments URL: https://news.ycombinator.com/item?id=47123109

Points: 1

# Comments: 0

Categories: Hacker News

Show HN: Ilove4o – a simple way to keep using GPT-4o

Hacker News - Mon, 02/23/2026 - 9:56am

Hi HN,

When OpenAI started phasing out GPT-4o from the main ChatGPT interface, I noticed a surprising amount of backlash — not about benchmarks or features, but about tone.

A lot of people (myself included) felt that 4o had a certain conversational warmth that later models don’t quite replicate in the same way. That difference was subtle, but noticeable.

So I built a small side project for myself: https://www.ilove4o.com/

It’s a minimal interface that connects directly to GPT-4o via the OpenAI API. No extra layers, no personality hacks — just a focused 4o-only chat experience.

I’m sharing it here because: - There seems to be real user preference around model “personality.” - I’m curious whether others noticed the same behavioral shift. - It raises an interesting question: how much of perceived “friendliness” comes from system prompts, UI, or subtle model tuning?

If you try it, I’d genuinely love feedback — especially from people who’ve spent significant time with multiple model versions.

Happy to answer technical or architectural questions.

Comments URL: https://news.ycombinator.com/item?id=47123105

Points: 1

# Comments: 0

Categories: Hacker News

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