The best Hacker News stories from Show from the past day
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Show HN: PHP API Bindings for Open Brewery DB
Howdy! I'm a recent PHP convert after a decade of laughing at PHP memes on r/programmerhumor, and wanted to dive a bit deeper into the language by building something practical with it. I also love beer and decided to combine the two by building a PHP library for the Open Brewery DB API (<a href="https://openbrewerydb.org/" rel="nofollow">https://openbrewerydb.org/</a>). Hope someone finds it useful!
Show HN: Alzheimer's Buddy: Use Flashing Light and Sound at 40Hz
I recently learned about some fascinating research done at MIT for potentially treating Alzheimer’s using light and sound stimulation at 40 hertz. Nothing has been proven yet, but it seemed compelling to me, especially given the safety and simplicity of the treatment (i.e., no drugs, no electrodes, just looking at light and hearing sounds).<p>I wanted to try it myself, but was surprised how hard it was to find something free and easy to use to generate such pulses. Which is odd because I remember some freeware DOS program I tried back in the 90s which did all this kind of stuff (anyone know what I’m talking about? Google fails me…).<p>So anyway, I made this tool in a couple hours and put it up as a public service so that older people can try this treatment now without waiting years for FDA trials to finish and without getting a diagnosis and expensive piece of medical equipment. The code is available here:<p><a href="https://github.com/Dicklesworthstone/anti_alzheimers_flasher">https://github.com/Dicklesworthstone/anti_alzheimers_flasher</a><p>As an aside, I first tried making this in Rust, but gave up after finding it incredibly annoying to deal with the wgpu library with its ever changing and breaking API. This was a surprise because I generally find working in Rust to be quite pleasant.<p>In contrast, doing it in JS was a total breeze, and I was impressed how well canvas and webaudio works nowadays. It also makes it easy to add documentation right there on the page, to distribute it, and to get it working on mobile phones automatically. Web development is pretty awesome!<p>The best part is that, because I made it as a single html file on GitHub, I was able to deploy it without even setting up Nginx on a machine somewhere— I just used Cloudflare Pages and the whole thing took a couple minutes (getting the domain from Cloudflare made things even easier since they automatically handled everything with the certificate).<p>I realize that there are limitations in using a computer screen for precise flashing given hardware refresh rates. I’d certainly welcome any PRs if people have ideas about how to improve it or make it more efficient without breaking it on mobile. I tried to do the flashing in a way that can be easily hardware accelerated in modern browsers. The hardest part was getting rid of the disconcerting popping artifacts when starting and stopping the low frequency audio, but I resolved it by ramping up and down the volume beforehand.
Show HN: Anki/Duolingo-like app using educational YouTube videos
Hi HN,<p>I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory.<p>Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!
Show HN: Anki/Duolingo-like app using educational YouTube videos
Hi HN,<p>I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory.<p>Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!
Show HN: Anki/Duolingo-like app using educational YouTube videos
Hi HN,<p>I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory.<p>Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!
Show HN: Anki/Duolingo-like app using educational YouTube videos
Hi HN,<p>I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory.<p>Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!
Show HN: Anki/Duolingo-like app using educational YouTube videos
Hi HN,<p>I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory.<p>Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!
Show HN: Integer Map Data Structure
This project presents a new data structure for storing ordered integer maps. The proposed data structure is a compressive, cache-friendly, radix tree that has performance comparable to an unordered map (`std::unordered_map`) and is an order of magnitude faster than an ordered map (`std::map`).
Show HN: Integer Map Data Structure
This project presents a new data structure for storing ordered integer maps. The proposed data structure is a compressive, cache-friendly, radix tree that has performance comparable to an unordered map (`std::unordered_map`) and is an order of magnitude faster than an ordered map (`std::map`).
Show HN: Qwertle, yet another daily word game
A new Wordle-like game, where guesses are ranked by how close letters are on a QWERTY keyboard. Try it out and let me know what you think!
Show HN: Qwertle, yet another daily word game
A new Wordle-like game, where guesses are ranked by how close letters are on a QWERTY keyboard. Try it out and let me know what you think!
Show HN: Qwertle, yet another daily word game
A new Wordle-like game, where guesses are ranked by how close letters are on a QWERTY keyboard. Try it out and let me know what you think!
Show HN: Lumos, a local LLM Chrome extension
Lumos is an LLM co-pilot for browsing the web, powered by local LLMs (Ollama).<p>- Summarize long threads on issue tracking sites, forums, and social media sites<p>- Summarize news articles<p>- Ask questions about reviews on business and product pages<p>- Ask questions about long, technical documentation<p>- What else?
Show HN: Lumos, a local LLM Chrome extension
Lumos is an LLM co-pilot for browsing the web, powered by local LLMs (Ollama).<p>- Summarize long threads on issue tracking sites, forums, and social media sites<p>- Summarize news articles<p>- Ask questions about reviews on business and product pages<p>- Ask questions about long, technical documentation<p>- What else?
Show HN: Lumos, a local LLM Chrome extension
Lumos is an LLM co-pilot for browsing the web, powered by local LLMs (Ollama).<p>- Summarize long threads on issue tracking sites, forums, and social media sites<p>- Summarize news articles<p>- Ask questions about reviews on business and product pages<p>- Ask questions about long, technical documentation<p>- What else?
Show HN: Lumos, a local LLM Chrome extension
Lumos is an LLM co-pilot for browsing the web, powered by local LLMs (Ollama).<p>- Summarize long threads on issue tracking sites, forums, and social media sites<p>- Summarize news articles<p>- Ask questions about reviews on business and product pages<p>- Ask questions about long, technical documentation<p>- What else?
Show HN: Lumos, a local LLM Chrome extension
Lumos is an LLM co-pilot for browsing the web, powered by local LLMs (Ollama).<p>- Summarize long threads on issue tracking sites, forums, and social media sites<p>- Summarize news articles<p>- Ask questions about reviews on business and product pages<p>- Ask questions about long, technical documentation<p>- What else?
Show HN: Deep search of all ML papers
Built an automated system to run a deep search of ArXiv and carefully find all the precise papers that exist on a complex topic.<p>It's different from simple RAG because it searches, classifies, and adapts based on relevant papers it uncovers, and then continues until it finds every paper on a topic (trying to mimic the human research process). Benchmarked 10x higher accuracy and total retrieval compared to Google Scholar for a median search (whitepaper on website). Also knows when it is complete, and misses virtually nothing (< 3% or so, once it's converged).<p>Website has a free trial and a bunch of example search reports. Want feedback and suggestions.
Show HN: Deep search of all ML papers
Built an automated system to run a deep search of ArXiv and carefully find all the precise papers that exist on a complex topic.<p>It's different from simple RAG because it searches, classifies, and adapts based on relevant papers it uncovers, and then continues until it finds every paper on a topic (trying to mimic the human research process). Benchmarked 10x higher accuracy and total retrieval compared to Google Scholar for a median search (whitepaper on website). Also knows when it is complete, and misses virtually nothing (< 3% or so, once it's converged).<p>Website has a free trial and a bunch of example search reports. Want feedback and suggestions.
Show HN: Bernard – a link checker for your website
Introducing Bernard, the project I have been working on solo since November 2022. After months of planning, coding and talking with a small number of potential users, I feel it is time to launch and get some real feedback.<p><i>GOAL</i>: Bernard is an automated links checker that crawls your website daily, identifying broken links (internal and external), and missing redirects, such as after a redesign or URL change.<p><i>TARGET AUDIENCE</i>: Anyone with a website—be it is a personal blog or company portal—looking to prevent link rot, to keep old URLs reachable and to avoid the dreaded 404 Page Not Found error.<p><i>STACK</i>: Elixir, with Phoenix Live View for the interactive dashboard. It runs on PostgreSQL, hosted as Podman containers on a single dedicated Hetzner server.<p><i>PLAN</i>: I am releasing this as a free, open beta to address the last few issues, and hope to introduce paid plans in February 2024. While there is a backlog of improvements and bug fixes, my primary focus now is making sure the product is aligned with what users need.<p>The pricing model is yet to be defined, but I'm considering a free tier for small website owners, and a usage-based plan starting from $10/mo for X,000 links checked per month. This would pair well with the upcoming REST API to provide a links-checker-as-a-service product to embed in third-party systems. (Feel free to contact me if you might be interested in using this API)<p>I also wrote about my journey to get this off the ground, and the challenges I faced at <a href="https://combo.cc/posts/bernard-devlog-3-pre-launch-reflections/" rel="nofollow">https://combo.cc/posts/bernard-devlog-3-pre-launch-reflectio...</a><p>Looking forward to your criticism and suggestions.