The best Hacker News stories from Show from the past day
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Show HN: Krita RGBA Tech – Bringing Realistic Metal to Life in Open-Source Art
Krita's v4.2+ RGBA brushtips let you paint with dimensionality, and it's a technology that Photoshop doesn't have (≖‿ゝ≖)<p>It lets the creator do things like emulating light direction, making brushstrokes look 3D.<p><i>I used them to make a set of metallic brushes.</i> If there are any FOSS artists around, feel free to test them out.<p>(p.s. Yes, I am learning Github so I probably made repository mistakes - apologies in advance lol)
Show HN: A Cursor for Video Editing
Hey HN,<p>Imagine having a collaborative AI video editor that truly understands your video content, and can automatically apply edits based off what it sees and hears. Just tell it what you want and it'll do the rest for you. Not only that but it'll make its own suggestions for edits to you and provide opinions and analysis. This is our vision with Frame AI: for the first time ever, you can edit videos with simple natural language.<p>We will be opening up limited spots tomorrow. Join our early waitlist so we can share an invite with you!<p>We’d also love to hear any feedback, suggestions, or comments on what you’d like to see as we make this vision a reality.<p>Sign up for the waitlist: <a href="https://frameapp.ai/" rel="nofollow">https://frameapp.ai/</a><p>Follow us for updates: <a href="https://x.com/frameapp_AI" rel="nofollow">https://x.com/frameapp_AI</a><p>Join our community: <a href="https://discord.gg/26SAZzBTaP" rel="nofollow">https://discord.gg/26SAZzBTaP</a><p>Demo video: <a href="https://www.youtube.com/watch?v=lTpTYipZ5Sg" rel="nofollow">https://www.youtube.com/watch?v=lTpTYipZ5Sg</a>
Show HN: Dracan – Open-source, 1:1 proxy with simple filtering/validation config
If you are tired of using Apache or Nginx to proxy your app and implement validation or limiting you may be interested in this hobbyist project. Thanks for all feedback.
Show HN: Dracan – Open-source, 1:1 proxy with simple filtering/validation config
If you are tired of using Apache or Nginx to proxy your app and implement validation or limiting you may be interested in this hobbyist project. Thanks for all feedback.
Show HN: Chonkie – A Fast, Lightweight Text Chunking Library for RAG
I built Chonkie because I was tired of rewriting chunking code for RAG applications. Existing libraries were either too bloated (80MB+) or too basic, with no middle ground.<p>Core features:<p>- 21MB default install vs 80-171MB alternatives<p>- 33x faster token chunking than popular alternatives<p>- Supports multiple chunking strategies: token, word, sentence, and semantic<p>- Works with all major tokenizers (transformers, tokenizers, tiktoken)<p>- Zero external dependencies for basic functionality<p>Technical optimizations:<p>- Uses tiktoken with multi-threading for faster tokenization<p>- Implements aggressive caching and precomputation<p>- Running mean pooling for efficient semantic chunking<p>- Modular dependency system (install only what you need)<p>Benchmarks and code: <a href="https://github.com/bhavnicksm/chonkie">https://github.com/bhavnicksm/chonkie</a><p>Looking for feedback on the architecture and performance optimizations. What other chunking strategies would be useful for RAG applications?
Show HN: Chonkie – A Fast, Lightweight Text Chunking Library for RAG
I built Chonkie because I was tired of rewriting chunking code for RAG applications. Existing libraries were either too bloated (80MB+) or too basic, with no middle ground.<p>Core features:<p>- 21MB default install vs 80-171MB alternatives<p>- 33x faster token chunking than popular alternatives<p>- Supports multiple chunking strategies: token, word, sentence, and semantic<p>- Works with all major tokenizers (transformers, tokenizers, tiktoken)<p>- Zero external dependencies for basic functionality<p>Technical optimizations:<p>- Uses tiktoken with multi-threading for faster tokenization<p>- Implements aggressive caching and precomputation<p>- Running mean pooling for efficient semantic chunking<p>- Modular dependency system (install only what you need)<p>Benchmarks and code: <a href="https://github.com/bhavnicksm/chonkie">https://github.com/bhavnicksm/chonkie</a><p>Looking for feedback on the architecture and performance optimizations. What other chunking strategies would be useful for RAG applications?
Show HN: Chonkie – A Fast, Lightweight Text Chunking Library for RAG
I built Chonkie because I was tired of rewriting chunking code for RAG applications. Existing libraries were either too bloated (80MB+) or too basic, with no middle ground.<p>Core features:<p>- 21MB default install vs 80-171MB alternatives<p>- 33x faster token chunking than popular alternatives<p>- Supports multiple chunking strategies: token, word, sentence, and semantic<p>- Works with all major tokenizers (transformers, tokenizers, tiktoken)<p>- Zero external dependencies for basic functionality<p>Technical optimizations:<p>- Uses tiktoken with multi-threading for faster tokenization<p>- Implements aggressive caching and precomputation<p>- Running mean pooling for efficient semantic chunking<p>- Modular dependency system (install only what you need)<p>Benchmarks and code: <a href="https://github.com/bhavnicksm/chonkie">https://github.com/bhavnicksm/chonkie</a><p>Looking for feedback on the architecture and performance optimizations. What other chunking strategies would be useful for RAG applications?
Show HN: I made a tiny device for automatically recording digital pianos
Hey HN!<p>A few years ago, I left my cushy big tech job to make hardware.<p>And made the device I always wanted - an automatic piano recorder!<p>I usually play piano improvisationally, and manually hitting record never meshed well with that. But there are always moments I wish I recorded, and now they are!<p>Hopefully it scratches a similar itch for some of you as well!<p>A few of the tech details:
* built on an esp32-s3
* custom injection molded enclosure
* BLE comms, sd card storage, DS1302 RTC
* android & ios apps with Flutter
* Shadertoy vfx support for video sharing<p>- Chip
Show HN: I made a tiny device for automatically recording digital pianos
Hey HN!<p>A few years ago, I left my cushy big tech job to make hardware.<p>And made the device I always wanted - an automatic piano recorder!<p>I usually play piano improvisationally, and manually hitting record never meshed well with that. But there are always moments I wish I recorded, and now they are!<p>Hopefully it scratches a similar itch for some of you as well!<p>A few of the tech details:
* built on an esp32-s3
* custom injection molded enclosure
* BLE comms, sd card storage, DS1302 RTC
* android & ios apps with Flutter
* Shadertoy vfx support for video sharing<p>- Chip
Show HN: I made a tiny device for automatically recording digital pianos
Hey HN!<p>A few years ago, I left my cushy big tech job to make hardware.<p>And made the device I always wanted - an automatic piano recorder!<p>I usually play piano improvisationally, and manually hitting record never meshed well with that. But there are always moments I wish I recorded, and now they are!<p>Hopefully it scratches a similar itch for some of you as well!<p>A few of the tech details:
* built on an esp32-s3
* custom injection molded enclosure
* BLE comms, sd card storage, DS1302 RTC
* android & ios apps with Flutter
* Shadertoy vfx support for video sharing<p>- Chip
Show HN: I made a tiny device for automatically recording digital pianos
Hey HN!<p>A few years ago, I left my cushy big tech job to make hardware.<p>And made the device I always wanted - an automatic piano recorder!<p>I usually play piano improvisationally, and manually hitting record never meshed well with that. But there are always moments I wish I recorded, and now they are!<p>Hopefully it scratches a similar itch for some of you as well!<p>A few of the tech details:
* built on an esp32-s3
* custom injection molded enclosure
* BLE comms, sd card storage, DS1302 RTC
* android & ios apps with Flutter
* Shadertoy vfx support for video sharing<p>- Chip
Show HN: Nondeterministic finite queued dialog automaton
Show HN: Visprex – Open-source, in-browser data visualisation tool for CSV files
Hello HN. I've always found writing data visualisation scripts boring and repetitive in data science workflows earlier in my career, so I built this tool to automate it. The available methods are based on my experience in econometrics where histograms and scatterplots were the starting points to check data distributions.<p>The link is to the documentation and the app is freely available at <a href="https://visprex.com" rel="nofollow">https://visprex.com</a>, and if you're curious about the implementation it's open source at <a href="https://github.com/visprex/visprex">https://github.com/visprex/visprex</a>. I'd appreciate any comments and feedback!
Show HN: Visprex – Open-source, in-browser data visualisation tool for CSV files
Hello HN. I've always found writing data visualisation scripts boring and repetitive in data science workflows earlier in my career, so I built this tool to automate it. The available methods are based on my experience in econometrics where histograms and scatterplots were the starting points to check data distributions.<p>The link is to the documentation and the app is freely available at <a href="https://visprex.com" rel="nofollow">https://visprex.com</a>, and if you're curious about the implementation it's open source at <a href="https://github.com/visprex/visprex">https://github.com/visprex/visprex</a>. I'd appreciate any comments and feedback!
Show HN: Visprex – Open-source, in-browser data visualisation tool for CSV files
Hello HN. I've always found writing data visualisation scripts boring and repetitive in data science workflows earlier in my career, so I built this tool to automate it. The available methods are based on my experience in econometrics where histograms and scatterplots were the starting points to check data distributions.<p>The link is to the documentation and the app is freely available at <a href="https://visprex.com" rel="nofollow">https://visprex.com</a>, and if you're curious about the implementation it's open source at <a href="https://github.com/visprex/visprex">https://github.com/visprex/visprex</a>. I'd appreciate any comments and feedback!
Show HN: Jaws – a JavaScript to WASM ahead-of-time compiler
I've open sourced a JavaScript to WASM compiler. It's an experimental tool, but given the semantics I already implemented, I'm fairly certain I am able to eventually cover 100% of JavaScript spec. Any ideas, questions or critique welcomed! If you are interested in WASM, especially with new proposals like WASM GC or exception handling, it might be a good source of seeing these features in action - the project has a few thousand lines of hand written WAT so far.
Show HN: Jaws – a JavaScript to WASM ahead-of-time compiler
I've open sourced a JavaScript to WASM compiler. It's an experimental tool, but given the semantics I already implemented, I'm fairly certain I am able to eventually cover 100% of JavaScript spec. Any ideas, questions or critique welcomed! If you are interested in WASM, especially with new proposals like WASM GC or exception handling, it might be a good source of seeing these features in action - the project has a few thousand lines of hand written WAT so far.
Show HN: Jaws – a JavaScript to WASM ahead-of-time compiler
I've open sourced a JavaScript to WASM compiler. It's an experimental tool, but given the semantics I already implemented, I'm fairly certain I am able to eventually cover 100% of JavaScript spec. Any ideas, questions or critique welcomed! If you are interested in WASM, especially with new proposals like WASM GC or exception handling, it might be a good source of seeing these features in action - the project has a few thousand lines of hand written WAT so far.
Show HN: HTML-to-Markdown – convert entire websites to Markdown with Golang/CLI
Hey HN!<p>I originally built “html-to-markdown” back in 2018 (while still in high school) to handle complex HTML conversions where other libraries struggled.<p>Now, I’ve released v2 — a complete rewrite designed to handle even more edge cases. It supports entire websites with a high accuracy.<p>Example use: I’ve used it in my RSS reader to strip HTML down to clean Markdown, similar to the "Reader Mode" in your Browser.<p>It can be used as a Golang package or as an CLI.<p>Give it a try & tell me what edge cases you encounter!
Show HN: HTML-to-Markdown – convert entire websites to Markdown with Golang/CLI
Hey HN!<p>I originally built “html-to-markdown” back in 2018 (while still in high school) to handle complex HTML conversions where other libraries struggled.<p>Now, I’ve released v2 — a complete rewrite designed to handle even more edge cases. It supports entire websites with a high accuracy.<p>Example use: I’ve used it in my RSS reader to strip HTML down to clean Markdown, similar to the "Reader Mode" in your Browser.<p>It can be used as a Golang package or as an CLI.<p>Give it a try & tell me what edge cases you encounter!