The best Hacker News stories from Show from the past day
Latest posts:
Show HN: Hippo, biologically inspired memory for AI agents
Show HN: Tusk for macOS and Gnome
Show HN: A cartographer's attempt to realistically map Tolkien's world
Show HN: Stop paying for Dropbox/Google Drive, use your own S3 bucket instead
Last week SWYX nerd-sniped me into building an Open-source Dropbox.<p>Here is Locker: the ultimate open-source Google Drive/box/Dropbox alternative
- Provider agnostic (S3, R2, vercel blob, local)
- BYOB (Bring your own bucket)
- Virtual file system
- QMD Search plugin
Show HN: Brutalist Concrete Laptop Stand (2024)
Show HN: Modo – I built an open-source alternative to Kiro, Cursor, and Windsurf
Show HN: Gemma Gem – AI model embedded in a browser – no API keys, no cloud
Gemma Gem is a Chrome extension that loads Google's Gemma 4 (2B) through WebGPU in an offscreen document and gives it tools to interact with any webpage: read content, take screenshots, click elements, type text, scroll, and run JavaScript.<p>You get a small chat overlay on every page. Ask it about the page and it (usually) figures out which tools to call. It has a thinking mode that shows chain-of-thought reasoning as it works.<p>It's a 2B model in a browser. It works for simple page questions and running JavaScript, but multi-step tool chains are unreliable and it sometimes ignores its tools entirely. The agent loop has zero external dependencies and can be extracted as a standalone library if anyone wants to experiment with it.
Show HN: Gemma Gem – AI model embedded in a browser – no API keys, no cloud
Gemma Gem is a Chrome extension that loads Google's Gemma 4 (2B) through WebGPU in an offscreen document and gives it tools to interact with any webpage: read content, take screenshots, click elements, type text, scroll, and run JavaScript.<p>You get a small chat overlay on every page. Ask it about the page and it (usually) figures out which tools to call. It has a thinking mode that shows chain-of-thought reasoning as it works.<p>It's a 2B model in a browser. It works for simple page questions and running JavaScript, but multi-step tool chains are unreliable and it sometimes ignores its tools entirely. The agent loop has zero external dependencies and can be extracted as a standalone library if anyone wants to experiment with it.
Show HN: GovAuctions lets you browse government auctions at once
I've long been into finding deals on government auction sites (seizures, surplus sales etc.) - right now for example San Diego DHS is selling 26 tons of lead shot, with bidding starting at $1,000 ¯\_(ツ)_/¯<p>It has historically been extremely tedious though: scanning dozens of janky sites which have interminable page loading times; back buttons take you all the way back to the homepage etc.<p>The site I built - GovAuctions - lets you search every government surplus auction at once. You can filter by location, category, and price, save items to a watchlist, and get alerts when new auctions match what you're looking for.<p>Let me know what you think, if you have any suggestions, and if you find any deals in your area!
Show HN: GovAuctions lets you browse government auctions at once
I've long been into finding deals on government auction sites (seizures, surplus sales etc.) - right now for example San Diego DHS is selling 26 tons of lead shot, with bidding starting at $1,000 ¯\_(ツ)_/¯<p>It has historically been extremely tedious though: scanning dozens of janky sites which have interminable page loading times; back buttons take you all the way back to the homepage etc.<p>The site I built - GovAuctions - lets you search every government surplus auction at once. You can filter by location, category, and price, save items to a watchlist, and get alerts when new auctions match what you're looking for.<p>Let me know what you think, if you have any suggestions, and if you find any deals in your area!
Show HN: Real-time AI (audio/video in, voice out) on an M3 Pro with Gemma E2B
Related: <a href="https://news.ycombinator.com/item?id=47653752">https://news.ycombinator.com/item?id=47653752</a>
Show HN: Real-time AI (audio/video in, voice out) on an M3 Pro with Gemma E2B
Related: <a href="https://news.ycombinator.com/item?id=47653752">https://news.ycombinator.com/item?id=47653752</a>
Show HN: Ghost Pepper – Local hold-to-talk speech-to-text for macOS
I built this because I wanted to see how far I could get with a voice-to-text app that used 100% local models so no data left my computer. I've been using a ton for coding and emails. Experimenting with using it as a voice interface for my other agents too. 100% open-source MIT license, would love feedback, PRs, and ideas on where to take it.
Show HN: Ghost Pepper – Local hold-to-talk speech-to-text for macOS
I built this because I wanted to see how far I could get with a voice-to-text app that used 100% local models so no data left my computer. I've been using a ton for coding and emails. Experimenting with using it as a voice interface for my other agents too. 100% open-source MIT license, would love feedback, PRs, and ideas on where to take it.
Show HN: I made a YouTube search form with advanced filters
Show HN: I built a tiny LLM to demystify how language models work
Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food.<p>Fork it and swap the personality for your own character.
Show HN: I built a tiny LLM to demystify how language models work
Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food.<p>Fork it and swap the personality for your own character.
Show HN: I built a small app for FSI German Course
Hi everyone. I am built a small application on top of FSI German basic course and I need some feedback regarding it.<p>It is a small web app. Currently only Unit 01 is available. I will feed in the rest of the units later down the road as I use it myself.<p>Some of the features includes<p>- Slow and fast audio with every single word and sentence in this app. You can play them with a click of a button. No need to rewind a tap back and forth.
- Flashcards with keyboard control to quickly go through the material and drill them out.<p>You can access the website at <a href="https://detawk.com/" rel="nofollow">https://detawk.com/</a> . There is a demo video on the landing page. Give it a look before signing up.<p>If you have any questions or feedback for me, let me know. I hope you like the app.
Show HN: OsintRadar – Curated directory for osint tools
A project which groups together curated open source intelligence tools, frameworks, and techniques.
Show HN: Contrapunk – Real-time counterpoint harmony from guitar input
Hi HN, I built Contrapunk because I wanted to play guitar and hear
counterpoint harmonies generated in real-time. It takes audio from your guitar, MIDI player or your computer keyboard and generates harmony voices that follow counterpoint rules to generate harmonies. You can choose the key you would like to improvise/play in and the voice leading style and which part of the harmony you would like to play as, as well.<p>macOS DMG:
<a href="https://github.com/contrapunk-audio/contrapunk/releases/tag/v1.0.0" rel="nofollow">https://github.com/contrapunk-audio/contrapunk/releases/tag/...</a><p>Source: <a href="https://github.com/contrapunk-audio/contrapunk" rel="nofollow">https://github.com/contrapunk-audio/contrapunk</a> (do open any issues if you have any)<p>Would love feedback on the DSP approach and the harmony algorithms. I am also looking at training a ML model for better realtime guitar to midi detection. I believe that will take some time.