Show HN: Hypercamera – a browser-based 4D camera simulator https://bit.ly/3M2rsxJ

Show HN: Hypercamera – a browser-based 4D camera simulator https://bit.ly/4rhsWEq November 19, 2025 at 02:54PM

Show HN: My first published app – track contraception ring cycle https://bit.ly/4p54AfK

Show HN: My first published app – track contraception ring cycle My wife said she wished there was a big widget on her phone that told her when to take her Nuvaring out. So I vibe coded one. What other problems can it solve? https://apple.co/4p0tflL November 25, 2025 at 12:43AM

Show HN: SitStand – Control your standing desk from the command line https://bit.ly/3K6Ot28

Show HN: SitStand – Control your standing desk from the command line https://bit.ly/4iqLRsE November 24, 2025 at 05:17AM

Show HN: Wanted to Give Dang Appreciation https://bit.ly/49UiRaz

Show HN: Wanted to Give Dang Appreciation Reddit has drifted over time but HN has remained a source of high signal to noise. Just wanted to thank dang and the moderation team for making this community what it is. November 24, 2025 at 12:30AM

Show HN: I wrote a minimal memory allocator in C https://bit.ly/4p12eP4

Show HN: I wrote a minimal memory allocator in C A fun toy memory allocator (not thread safe, that's a future TODO). I also wanted to explain how I approached it, so I also wrote a tutorial blog post (~20 minute read) covering the code which you can find the link to in the README. https://bit.ly/4o9Gr6B November 23, 2025 at 11:25PM

Show HN: Dank-AI – Ship production AI agents 10x faster https://bit.ly/3LTNmTX

Show HN: Dank-AI – Ship production AI agents 10x faster https://bit.ly/48clhyr November 23, 2025 at 06:54AM

Show HN: Eidos – AI IDE that generates and edits game prototypes instantly https://bit.ly/4p26BJC

Show HN: Eidos – AI IDE that generates and edits game prototypes instantly I built EIDOS because I wanted a faster and more flexible way to prototype game ideas without repeatedly writing the same boilerplate code. EIDOS is an AI-powered IDE that can: • Generate gameplay code from natural language descriptions • Edit existing code through an integrated AI assistant • Open the correct editor automatically (text editor, code editor, or video editor) depending on the file • Run prototypes instantly for quick iteration As a solo developer, I spent years building my own tools to speed up experimentation. This project is the result of trying to remove the setup time, folder structures, and repetitive coding that often slow down early-stage game development. I’d appreciate any feedback on usability, performance, or what features would be most helpful for indie developers or small teams. https://bit.ly/4ij0tdl November 23, 2025 at 02:15AM

Show HN: HN Buffer – A read-it-later site for your HN favorites https://bit.ly/49AHV65

Show HN: HN Buffer – A read-it-later site for your HN favorites Hello! I’ve been reading Hacker News for years and have a bad habit of favoriting articles but never actually going back to read them. I finally built hnbuffer to scratch my own itch and help me work through that backlog. I also mainly built this as an excuse to learn/use some of the languages/frameworks/tools since I have another backlog of things I wanted to try too. It syncs your favorites into a queue with a reader mode and swipe gestures. The streak tracking is something I'm still experimenting with. Note: It requires an HN login to scrape the favorites list (credentials are client-side only, not stored). Let me know what you think! https://bit.ly/48d3jfc November 22, 2025 at 10:00PM

Show HN: Host a Website from an Old Phone https://bit.ly/49BB9gC

Show HN: Host a Website from an Old Phone https://bit.ly/4ppH5Ob November 22, 2025 at 07:16PM

Show HN: I made an app to keep track of your sailboat maintenance https://bit.ly/4oZeWOi

Show HN: I made an app to keep track of your sailboat maintenance https://bit.ly/43HUUiO November 22, 2025 at 12:02PM

Show HN: Skedular, a Smart Booking and Workspace Management Platform https://bit.ly/48aNWUR

Show HN: Skedular, a Smart Booking and Workspace Management Platform Hi HN I have been working on Skedular a platform that helps organizations councils co working spaces and local businesses manage bookings shared spaces and multi location operations in a simple modern way What Skedular does - Manage rooms desks studios sports facilities meeting spaces and any kind of bookable asset - Handle multi location multi team scenarios - Provide public booking pages for venues - Offer a clean dashboard for operators to manage availability payments customers and schedules - API first design for easy integration with existing systems - Built with modern tooling including Nextjs NET backend PostGIS and Kafka events Why I built it Most booking platforms are either too simple or too enterprise heavy Skedular is meant to sit in the middle powerful enough for councils or large organisations but simple enough for a local venue owner to use without training. I am currently onboarding early users and would love feedback from this community especially around UX data modelling and scaling patterns. Links - Public website https://bit.ly/4gj86Oi - App website https://bit.ly/3EbLSAC Looking for feedback I would appreciate thoughts on the overall concept any edge cases I might be missing suggestions for UI and UX improvements and pain points you have experienced in managing bookings or shared resources Thanks for taking a look Morteza https://bit.ly/3EbLSAC November 22, 2025 at 06:04AM

Show HN: I made a Rust Terminal UI for OpenSnitch, a Linux application firewall https://bit.ly/4po23gn

Show HN: I made a Rust Terminal UI for OpenSnitch, a Linux application firewall I made a Terminal UI for OpenSnitch[1], an interactive application firewall for Linux inspired by Little Snitch. I’ve always wanted to create a TUI and found the perfect excuse to make this for usage on one of my headless servers. I wrote this in Rust to force myself to learn more, viz. async features. Super open to feedback and contributions! [1] https://bit.ly/4ppWONg https://bit.ly/3XG76No November 22, 2025 at 12:48AM

Show HN: Get Fat Slowly https://bit.ly/44bQLUk

Show HN: Get Fat Slowly I've been enjoying building calculators with ChatGPT to help me model various life decisions. When my friend shared he drinks 1-2 Starbucks Mochas per day, it made me wonder how that impacts his health over the course of the year (or several years). Drinking 2 mocha's per day adds 45.9 lb (20.8kg) body fat that your body either needs to burn or store per year. https://bit.ly/49yjUN0 November 21, 2025 at 01:18PM

Show HN: 32V TENS device from built from scratch under $100 https://bit.ly/3JNoJI1

Show HN: 32V TENS device from built from scratch under $100 https://bit.ly/48auiYS November 17, 2025 at 04:06PM

Show HN: UsageFlow – API usage metering, rate-limits and usage reporting https://bit.ly/4oa6Dhl

Show HN: UsageFlow – API usage metering, rate-limits and usage reporting I’m launching UsageFlow, a simple tool for API owners who want automatic API usage metering and full control over their endpoints — all without any hassle. With just a few lines of code, the UsageFlow SDK gives you: Automatic discovery of API endpoints User identification Usage metering Rate-limits and automatic blocking Reporting usage events to your existing billing or metering system Supports: Go (Gin), Python (FastAPI, Flask), Node.js (Express, Fastify, NestJS) Perfect for AI APIs or SaaS platforms that want to scale fast — focus on building your product while UsageFlow handles usage tracking automatically. No developer skills required to: Update usage rules Apply limits Report usage Everything works with a few clicks — your entire usage platform is in your hands, instantly. I’m opening this for first testers. If you run an API and want to try UsageFlow, comment below or DM me — I will create your account and get you started in minutes. Learn more at: https://bit.ly/48ecKLG November 20, 2025 at 11:49PM

Show HN: An A2A-compatible, open-source framework for multi-agent networks https://bit.ly/47OuChc

Show HN: An A2A-compatible, open-source framework for multi-agent networks https://bit.ly/4idCmgf November 20, 2025 at 06:52AM

Show HN: F32 – An Extremely Small ESP32 Board https://bit.ly/3LMHo7k

Show HN: F32 – An Extremely Small ESP32 Board As part of a little research and also some fun I decided to try my hand at seeing how small of an ESP32 board I can make with functioning WiFi. https://bit.ly/3JXj6XI November 19, 2025 at 09:09PM

Show HN: Lumical – scan any meeting invite into your calendar in seconds https://bit.ly/4i9ni3g

Show HN: Lumical – scan any meeting invite into your calendar in seconds I built an iOS app that lets you point your phone at a paper invite or screenshot, review the parsed details, and drop the event straight into your calendar, so you can capture meetings in seconds instead of typing. https://bit.ly/4a1qV9f November 19, 2025 at 07:55AM

Show HN: Kk – A tiny Bash CLI that makes kubectl faster https://bit.ly/4o2QLNC

Show HN: Kk – A tiny Bash CLI that makes kubectl faster I built "kk", a small Bash wrapper around kubectl that makes common Kubernetes workflows faster. It's not a plugin or a compiled binary. It's just a single script you can drop into ~/bin. The goal is to reduce repetitive kubectl patterns without replacing kubectl itself. Some things it helps with: - pod selection by substring (auto-fzf if available) - multi-pod logs with prefixing and grep support - quick exec into pods - checking the actual images running in pods - restarting deployments with pattern matching - port-forwarding with pod auto-selection - quick describe/top/events - context switching shortcuts Examples: kk pods api kk sh api kk logs api -f -g ERROR kk images api kk restart api kk pf api 8080:80 kk desc api kk top api kk events kk ctx kk deploys Installation: curl -o ~/bin/kk https://bit.ly/4o1TaI8 chmod +x ~/bin/kk Repo: https://bit.ly/48ims0F Happy to hear feedback, suggestions, or ideas for small helpers to improve the kubectl experience. https://bit.ly/48ims0F November 19, 2025 at 07:22AM

Show HN: Startup Simulator https://bit.ly/4pD2Pqb

Show HN: Startup Simulator Vibe coded this startup simulator. It's not much, but I just wanted to know the potential. Also, I used Google's Antigravity IDE for this. Feel free to leave comments on here or at https://bit.ly/4pD2PXd https://bit.ly/4oneDvH November 19, 2025 at 04:43AM