Show HN: Incremental JSON parser for streaming LLM tool calls in Ruby https://ift.tt/SRuDqWH

Show HN: Incremental JSON parser for streaming LLM tool calls in Ruby Built this for streaming AI tool calls. LLMs stream function arguments as JSON character-by-character. Most parsers reparse from scratch each time - O(n²) behavior that causes UI lag. This maintains parsing state, processing only new characters. True O(n) performance that stays imperceptible throughout the entire response. Ruby gem, MIT licensed. Would love feedback. https://ift.tt/Hk4xgqy October 23, 2025 at 01:02AM

Show HN: Create interactive diagrams with pop-up content https://ift.tt/1quRdat

Show HN: Create interactive diagrams with pop-up content This is a recent addition to Vexlio which I think the HN crowd may find interesting or useful. TL;DR: easy creation of interactive diagrams, meaning diagrams that have mouse click/hover hooks that you can use to display pop-up content. The end result can be shared with a no-sign-in-required web link. My thought is that this is useful for system docs, onboarding or user guides, presentations, etc. Anything where there is a high-level view that should remain uncluttered + important metadata or details that still need to be available somewhere. You can try it out without signing up for anything, just launch the app here ( https://app.vexlio.com/ ), create a shape, select it with the main pointer tool and then click "Add popup" on the context toolbar. I'd be grateful for any and all feedback! https://ift.tt/QqSpVPt October 22, 2025 at 08:15PM

Show HN: MTOR – A free, local-first PWA to automate workout progression https://ift.tt/SyrHEmq

Show HN: MTOR – A free, local-first PWA to automate workout progression Hi HN, My motivation for this came from frustration with existing workout trackers. Most felt clunky, hid core features like performance graphs behind a paywall, or forced a native app download. A few people close to me who take their training seriously shared the same sentiment, so I decided to build my own. I'm working on mTOR, a free, science-based workout tracker I built to automate progressive overload. It's a local-first PWA that works completely offline, syncs encrypted between your devices using passwordless passkeys, and allows for plan sharing via a simple link. The core idea is to make progression easier to track and follow. After a workout, it analyzes your performance (weight, reps, and RIR), highlights new personal records (PRs), and generates specific targets for your next session. It also reviews your entire program to provide scientific analysis on weekly volume, frequency, and recovery for each muscle group. This gets displayed visually on an anatomy model to help you learn which muscles are involved, and you can track your gains over time with historical performance charts for each exercise. During a workout, you get a total session timer, an automatic rest timer, and can see your performance from the last session for a clear target to beat. It automatically advances to the next incomplete exercise, and when you need to swap an exercise, it provides context-aware alternatives targeting the same muscles. It's also deeply customizable: * The UI has a dark theme, supports multiple languages (English, Spanish, German), lets you adjust the UI scale, and toggle the visibility of detailed muscle names, exercise types, historical performance badges, and a full history card. * You can set global defaults for weight units (kg/lbs), rest times, and plan targets, or enable/disable metrics like Reps in Reserve (RIR) and estimated 1-Rep Max. The exercise library can be filtered by your available equipment, you can create your own custom exercises with global notes, and there's a built-in weight plate calculator. * The progression system lets you define default rep ranges and RIR targets, or create specific overrides for different lifts (e.g., a 3-5 rep range for strength, 10-15 for accessories). * Editing is flexible: you can drag-and-drop to reorder days, exercises, and sets, duplicate workout days, track unilateral exercises (left/right side), and enter data with a quick wheel picker. I'll be here all day to answer questions. I'm also thinking about making the project open-source down the line and would be curious to hear any thoughts on that. Thanks for checking it out! https://mtor.club/ October 22, 2025 at 12:04AM

Show HN: bbcli – A TUI and CLI to browse BBC News like a hacker https://ift.tt/49gD8v7

Show HN: bbcli – A TUI and CLI to browse BBC News like a hacker hey hn! I (re)built this TUI tool for browsing BBC News in the terminal, it uses an RSS feed for getting headlines and previews and you can read articles too. Try it out and let me know what you think! :) https://ift.tt/rlFWcHY October 19, 2025 at 04:28PM

Show HN: OpenJobHub – A Free and Open Job Board https://ift.tt/j29B0Lk

Show HN: OpenJobHub – A Free and Open Job Board Hey everyone, I recently built OpenJobHub, a free and open source job board for engineers. My goal is simple: in these tough times, I hope more people can find good jobs, and that job information can be more open and transparent. Feel free to share it with any recruiters, HRs, or friends who are hiring. Let's build a healthier job ecosystem together. GitHub: https://ift.tt/K3JGTEi Website: https://jobs.wowkit.net https://ift.tt/K3JGTEi October 21, 2025 at 11:03PM

Show HN: Online Sourcerer – The best answer to 'source?' https://ift.tt/KAJQxrj

Show HN: Online Sourcerer – The best answer to 'source?' Hello, I made this site to combat misinformation on the internet by allowing users to prove that their claim is valid by linking multiple sources and combining them in a single link It's very early stage so I would love feedback on: - What types of claims would be most useful to you? - How can I make verification/sourcing more robust? - Any features that would make this actually useful vs just interesting? Thanks in advance, feel free to roast :) https://ift.tt/YD1rzkS October 21, 2025 at 03:46AM

Show HN: I built a Product Hunt alternative for African tech startups https://ift.tt/3pFHx0e

Show HN: I built a Product Hunt alternative for African tech startups With the advance of AI, everyone is building and creating solutions. It is actually amazing to see people in Africa engage this creative field and produce products that could help their ecosystem. So I built a platform that will soon be the biggest directory of tech products made by people in Africa to solve African Problems. I am taking this path because I understand we have very different problems and different cultures and things work differently especially in Africa. What do you guys think? I want your feedback on everything. https://ift.tt/ZSYlokF October 21, 2025 at 02:25AM