Show HN: I build an iOS App for parents to plan meal, create recipes, lunchboxes https://bit.ly/4nGRFR3

Show HN: I build an iOS App for parents to plan meal, create recipes, lunchboxes Hi, I built this iOS App that would let parents create profiles for my children, plan their meals, put their meal preferences, recipes, lunchboxes, export the plan to their calendar, and share links to the timetable with others, and of course an AI helping with the plan and recipe . For now it has a free plan and also paid plan. Initially i built this as a web app but then after feedbacks from close people i developed this iOS app. I would really appreciate your feedback. https://apple.co/3UaEIBc July 13, 2025 at 12:48AM

Show HN: I made a JSFiddle-style playground to test and share prompts fast https://bit.ly/3ItyVEh

Show HN: I made a JSFiddle-style playground to test and share prompts fast I built this out of frustration as I lead the development of AI features at Yola.com. Prompt testing should be simple and straightforward. All I wanted was a simple way to test prompts with variables and jinja2 templates across different models, ideally somthing I could open during a call, run few tests, and share results with my team. But every tool I tried hit me with a clunky UI, required login and API keys, or forced a lengthy setup process. And that's not all. Then came the pricing. The last quote I got for one of the tools on the market was $6,000/year for a team of 16 people in a use-it-or-loose-it way. For a tool we use maybe 2–3 times per sprint. That’s just ridiculous! IMO, it should be something more like JSFiddle. A simple prompt playground that does not require you to signup, does not require API keys, and let's experiment instantly, i.e. you just enter a browser URL and start working. Like JSFiddle has. And mainly, something that costs me nothing if I'm or my team is not using it. Eventually I gave up looking for solution and decided to build it by myself. Here it is: https://bit.ly/4lQMEn4 Help me find what's wrong or missing or does not work from you perspctive. P.S. I did not put any limits or restrictions yet, so test it wisely. Don't make me broke, please. https://bit.ly/4lQMEn4 July 12, 2025 at 06:41PM

Show HN: I built a toy music controller for my 5yo with a coding agent https://bit.ly/3Glx1oL

Show HN: I built a toy music controller for my 5yo with a coding agent The HN community may find the context of the prompts, organized by each turn in each session, the most useful. See the website/docs/prompts.md and session-X.md files. I also started exploring some workflows for the LLM to execute, organized in the website/docs/tasks/ folder. I found it pretty handy to have the LLM document our work as we went and simply embedded the static site into the executable, along with all the music and logic. The whole project took me about a day for the backend. The C++ controller itself took only a few turns. I enjoyed focusing on my son's experience and letting the agent handle the C++, Javascript, and Go code. I'm still getting started with coding agents, so please do share any tips or tricks to help me with similar projects. I'm most interested in how to work effectively with the agent, like what you see in dev-loop.sh https://bit.ly/3Glx1VN July 8, 2025 at 03:32PM

Show HN: VibeKin – Gated Discord Tribes via Personality Matching https://bit.ly/4kzrSXU

Show HN: VibeKin – Gated Discord Tribes via Personality Matching I built an app that matches users to exclusive Discord communities based on a 25-question personality quiz. Inspired by HEXACO but with a novel fuzzy-clustering twist, it creates a "harmony genome" to gate access, ensuring tight-knit tribes (e.g., wellness or creative niches). Think Reddit but curated via psych. Launched to test the idea—feedback on algo, niches, or scaling? https://bit.ly/4ksLzAF July 12, 2025 at 03:02AM

Show HN: Transition – AI Triathlon Coach https://bit.ly/466jHPn

Show HN: Transition – AI Triathlon Coach Hey HN, I’m Alex, a triathlete, dad, and software engineer. I’ve been building Transition — an app for triathletes that creates adaptive training plans based on your goals, schedule, and workout data (Garmin, Strava, etc). Most plans are static, which never really worked for me as a parent and someone with an unpredictable schedule. Transition adjusts every week using your actual workouts and progress, so the plan changes when you miss a session, set a new PR, or need to shift your priorities. I built this because nothing else was flexible enough for my life, and I’m curious if others have the same problem. It’s in beta and free to try. I’d love feedback from the HN crowd — especially around the training logic, onboarding, or any ways to make it more useful for real athletes. Website: https://bit.ly/3InEu7m https://bit.ly/3InEu7m July 12, 2025 at 03:39AM

Show HN: A decentralized command line key-value store on Nostr https://bit.ly/4eLics7

Show HN: A decentralized command line key-value store on Nostr I built nkv because I wanted a simple way to pass simple values between different devices without maintaining a central server. Nostr provides a backbone with "good enough" decentralization. Enjoy! https://bit.ly/3GvXtvU July 11, 2025 at 10:21AM

Show HN: Code is all you need – Sherlog MCP https://bit.ly/3TA2feO

Show HN: Code is all you need – Sherlog MCP https://bit.ly/4lh5Wlb July 11, 2025 at 08:29AM

Show HN: Interactive pinout for the Raspberry Pi Pico 2 https://bit.ly/44B8GDf

Show HN: Interactive pinout for the Raspberry Pi Pico 2 I've been trying to make accessible and beautiful GPIO pinouts since I started one for the Raspberry Pi in 2013 [1]. I've since given the Raspberry Pi Pico [2] and Pico 2 [3] microcontrollers the same treatment when they launched. Recently I've updated these with a new "Upside-down" view to complement the rear view, giving a pinout in the right orientation to match your project. The Pico sites are all hand-coded single HTML pages with supporting CSS and minimal JS. They are set up to optionally install as a "Desktop" web app. They also degrade into a somewhat usable table in lieu of CSS and use vector graphics (for the board itself) to be viewable and printable at any size. Finally, hidden behind "Advanced" is a pinout of the test pads and special function pins! [1] - https://bit.ly/3TvBGaD... [2] - https://bit.ly/3O4NNtJ [3] - https://bit.ly/4ktzM59 https://bit.ly/4ktzM59 July 7, 2025 at 05:01PM

Show HN: I just deployed GovDocs – which use AI to make SA gov docs searchable https://bit.ly/44Hwt4z

Show HN: I just deployed GovDocs – which use AI to make SA gov docs searchable https://bit.ly/4kxAFK3 July 11, 2025 at 01:13AM

Show HN: Typeform was too expensive so I built my own forms https://bit.ly/4lPagsn

Show HN: Typeform was too expensive so I built my own forms Hey HN, I'm a solopreneur and run a web design agency. I create open-source apps, but I also work as a freelancer and designer. I was accepting any new freelance project via forms on my agency website. I was using Typeform, but as time went by and more people submitted forms, it got more and more expensive. That time, I thought to use Google Form, but it was way too blocky and looked very unprofessional on my agency website. So I thought to build my own forms for my own usage, and it turns out it almost doubled form submissions and inquiry calls. I was happy, so I thought to build it for everyone and make it open-source. I added AI functionalities using Vercel AISDK. I can generate forms almost instantly using AI and also added analytics AI so that users can talk with their forms—more like talk with their analytics data. I hope this product will be as helpful to you as it was for me. Would love your feedback pls Preet https://bit.ly/4nHhNeu July 10, 2025 at 10:02AM

Show HN: Still coding in VC++ 6.0 after losing everything, living in a trailer https://bit.ly/3Iml4zv

Show HN: Still coding in VC++ 6.0 after losing everything, living in a trailer Hey HN, I spent 30 years writing CAD plugins in C++, mostly in Visual C++ 6.0. Then the industry collapsed. And I lost an intellectual lawsuit, my income dried up, and my marriage ended. Now I live alone in a trailer in rural Canada — still writing code, still surviving, trying to crawl back. This is a short video I made (50 seconds), documenting a quiet moment from this strange life. If you’ve ever hit rock bottom and kept going, you might relate. https://youtube.com/shorts/dDLSd3pfIYI?feature=share Thanks for watching. Just sharing — not selling anything. July 10, 2025 at 04:26AM

Show HN: I built a playground to showcase what Flux Kontext is good at https://bit.ly/4luKnOD

Show HN: I built a playground to showcase what Flux Kontext is good at Hi HN, After spending some time with the new `flux kontext dev` model, I realized its most powerful capabilities aren't immediately obvious. Many people might miss its true potential by just scratching the surface. I went deep and curated a collection of what I think are its most interesting use cases – things like targeted text removal, subtle photo restoration, and creative style transfers. I felt that simply writing about them wasn't enough. The best way to understand the value is to see it and try it for yourself. That's why I built FluxKontextLab ( https://bit.ly/4nG4Pxq ). On the site, I've presented these curated examples with before-and-after comparisons. More importantly, there's an interactive playground right there, so you can immediately test these ideas or your own prompts on your own images. My goal is to share what this model is capable of beyond the basics. It's still an early project. I'd love for you to take a look and share your thoughts or any cool results you generate. https://bit.ly/4nG4Pxq July 10, 2025 at 02:10AM

Show HN: I built a social media app at 11 using AI and a phone https://bit.ly/44UnhLp

Show HN: I built a social media app at 11 using AI and a phone Hi HN, I'm 11 years old and I'm learning to code with the help of AI. I recently created my own social media app inspired by TikTok and short videos. I built it from scratch using my Android phone and some programming apps like Replit and Base44. The idea is to allow users to post and watch short videos, follow others, and use a like-based system. I created the interface and logic myself, and AI helped me when I got stuck on bugs or needed help understanding something. This is my first serious project, and I'd love to get feedback from real developers and creators. Here's the link: *[ https://bit.ly/3TxKuga ]* What do you think? What should I improve next? Thanks for reading https://bit.ly/3TxKuga July 10, 2025 at 12:11AM

Show HN: Multi-session Claude Code manager with async workflow https://bit.ly/3GxpPpx

Show HN: Multi-session Claude Code manager with async workflow https://bit.ly/44t5AkA July 9, 2025 at 08:30AM

Show HN: I rewrote an outdated React Native map clustering library https://bit.ly/4lulHFO

Show HN: A Truth Table Generator Written in Common Lisp https://bit.ly/4eFW5n4

Show HN: A Truth Table Generator Written in Common Lisp https://bit.ly/3Ikke6v July 9, 2025 at 04:52AM

Show HN: Track the AI-generated code in your repo https://bit.ly/4nF18rI

Show HN: Track the AI-generated code in your repo https://bit.ly/44Skt1h July 8, 2025 at 06:07PM

Show HN: PulseTimer – A clean, customizable work/break timer you can self-host https://bit.ly/4lewuUz

Show HN: PulseTimer – A clean, customizable work/break timer you can self-host I built PulseTimer because I wanted a clean, distraction-free work/break timer that actually lets me tweak session lengths, break intervals, and notifications without requiring an account or tracking anything. Features: – Customizable work sessions & break durations – Optional notifications with sound – Skip break button when needed – Session history and progress tracking – Fully local, no accounts or tracking – Self-hostable (Node + Express) Live demo: https://bit.ly/3Ggdd69 Source: https://bit.ly/4kvxLFv Would love any feedback, suggestions, or bug reports! https://bit.ly/3Ggdd69 July 8, 2025 at 02:21PM

Show HN: OffChess – 100k+ Offline, Ad-Free Chess Puzzles App https://bit.ly/403f70z

Show HN: OffChess – 100k+ Offline, Ad-Free Chess Puzzles App Hi HN! I'm the developer of rdx, a mildly popular ad-free, privacy and user friendly Reddit client. This time, I made something for a very specific use case: solving chess puzzles with no internet. Why? Well, my Wi-Fi is terrible in the bathroom—and that's where I do some of my best thinking. I tried printing out “mate in X” puzzles to solve offline, but they weren’t fun without interaction. So I built OffChess. OffChess is an iPhone/Android app that contains over 100,000 chess puzzles, fully offline and completely ad-free. You can solve puzzles by category (Mate in 1/2/3/4/5, tactics like pins/forks/skewers, or openings like Sicilian/French, etc). You gain or lose points based on how you perform, so there's a light rating system to keep things engaging. No accounts, no tracking, no monthly subscriptions, no internet required. Just pure, old-school tactical chess training, wherever you are. You can check out the iPhone/iPad app at https://apple.co/4lewow5... or the Android app at https://bit.ly/4kwEm2K Would love feedback, bug reports, or suggestions. Thanks! https://bit.ly/4ktqOVM July 8, 2025 at 09:57AM

Show HN: HireIndex – A Searchable Directory for Who Wants to Be Hired on HN https://bit.ly/4kuEPlU

Show HN: HireIndex – A Searchable Directory for Who Wants to Be Hired on HN Hi HN, I built hireindex.xyz – a searchable website that aggregates and indexes candidates from the "Who Wants to Be Hired" threads on Hacker News. Coming soon: Analytics to highlight trends in skills, technologies, and candidate preferences across HN posts. With HireIndex, you can: Search by tech stack. Quickly scan bios, salary expectations, and contact links. Filter by remote/on-site preferences and employment type. I made this because I was tired of scrolling through long threads and wanted a better way to find interesting people. Would love your feedback – especially around UX and anything that would make it more useful to hiring managers, founders, or even job seekers themselves. https://bit.ly/4ledipT https://bit.ly/4ledipT July 8, 2025 at 05:11AM