Show HN: Replacing $5K industrial signal towers with a webapp [video] https://ift.tt/eW6yOqs

Show HN: Replacing $5K industrial signal towers with a webapp [video] I built SignalTower, a web app that recreates $5K industrial signal tower functionality using just a browser. Demo: https://signaltower.netlify.app The demo uses your phone's flashlight to prove the concept, but the same Web Serial/WebUSB APIs can control real PLCs and signal towers. Traditional setup: ~$15K (HMI panel + signal tower + licenses) This setup: $15 Raspberry Pi You can test it standalone or install it in GnokeStation by typing "install [signaltower-url]" in …

Show HN: Video to JPG – Extract frames in browser with blur detection https://ift.tt/eHSUsOA

Show HN: Video to JPG – Extract frames in browser with blur detection https://videotojpg.com December 31, 2025 at 11:00PM

Show HN: Arvo – TypeScript toolkit for event-driven agentic systems and mesh https://ift.tt/OH0dAUi

Show HN: Arvo – TypeScript toolkit for event-driven agentic systems and mesh Hi folks, I am very new to the hacker news community and would like to share something I have been working on. I've spent the past 3 years building Arvo, a TypeScript toolkit for applications where AI agents, humans, workflows, and business logic need to work together. My core thesis is to treat the main units of work as event handlers. Agents, workflows, services, and humans all modelled as event handlers communicating across an event fabric. No architectural privileges. A…

Show HN: Generate your personal HN recap for 2025 https://ift.tt/sKmvx7i

Show HN: Generate your personal HN recap for 2025 Hi HN, We wanted to celebrate the new year so we built this little toy. Enjoy it and happy new year! P.S. If you want, take a look at our product (now in early access) - userjam.com https://ift.tt/na7fdm8 December 31, 2025 at 03:51AM

Show HN: I built a universal clipboard that syncs realtime on multiple devices https://ift.tt/4gixPlH

Show HN: I built a universal clipboard that syncs realtime on multiple devices I’m Gopal, the guy behind QuickClip. I built this out of pure frustration. Copying items between my phone and laptop was very painful. Sending notes and links on WhatsApp. Saving random drafts I’d forget about. It was total waste of time. So I made QuickClip for myself first. A dead simple way to move text, links and images between devices instantly. No setup drama. No thinking. Fully encrypted I use it every day. Shipping it publicly now to see if anyone else has the same pr…

Show HN: Isit2026yet.com – A single-serving site for the New Year https://ift.tt/6LHVYSP

Show HN: Isit2026yet.com – A single-serving site for the New Year https://ift.tt/wgSd4sR December 30, 2025 at 10:20PM

Show HN: Agent Skill + Activity Watcher = productivity hack for 2026 https://ift.tt/JqrN3U9

Show HN: Agent Skill + Activity Watcher = productivity hack for 2026 https://ift.tt/CHZy85d December 29, 2025 at 11:37PM

Show HN: DevCompare – a live, auto-updating comparison of AI coding tools https://ift.tt/2Ph6RWK

Show HN: DevCompare – a live, auto-updating comparison of AI coding tools Hi HN, AI coding tools change fast and I kept running into comparisons that were outdated within weeks. So I built DevCompare to automate the whole thing. DevCompare regenerates comparisons daily across 18 criteria, including features, pricing, repo understanding, latency, and real developer sentiment from Reddit and HN. The site is fully automated via cron, cached at the edge, and loads as a simple table with expandable details. No signups, no paywall. https://devcompare.io Happy…

Show HN: Vibe coding a bookshelf with Claude Code https://ift.tt/esgEmhZ

Show HN: Vibe coding a bookshelf with Claude Code https://ift.tt/Wcr3xEQ December 29, 2025 at 05:22AM

Show HN: See what readers who loved your favorite book/author also loved to read https://ift.tt/WpOtYMJ

Show HN: See what readers who loved your favorite book/author also loved to read Hi HN, Every year, we ask thousands of readers (and authors) to share their 3 favorite reads of the year. Now you can enter a book/author you love and see what books readers loved who also loved that book/author. Try it here: https://ift.tt/rxj3siM This goes wide and doesn't try to limit itself to the genre, so you get some interesting results. What do you think? Background: I want better recommendations based on my reading history. I'm incredibly frustrated with wh…