製品・アイデアデータベース

Films made with code. Short films, long YouTube videos, ads, explainers and music videos: an AI coding agent writes the script, builds every frame in code, designs the sound and hands you an MP4.

Evidence-based DSM ransomware recovery: preservation, RAM key recovery, copy decryption, and GitLab validation.

Shortcut races your normal route against faster ones to the game server, sends only the game down the winner, and sends every packet twice so loss never becomes a lag spike. Not a VPN.

Breath of the Wild (Wii U, v1.5.0) statically recompiled to a native Windows program with a Vulkan renderer.

基于 Mika 的 iOS / Android 多设备 agent 主控与安卓执行端

公交实时到站查询与动态追踪

After seeing Karpathy's Hackertube and Hackerbooks, I just had to make Wikihack. I scraped all mentions of wikipedia on hackernews and ranked them, and turn them into a scrollable feed to make it a bit more easy to digest / interact with. You can see where people submitted the articles and where peo

Pixel-art diorama playbook and Three.js code kit: research-first build workflow, locked camera, palette snap, ordered dither, inked contour, animated toy-scale cast, per-entity frame QA.

A proof-of-concept opensource implementation of Android Auto's client side (phone side)

A pure-code beat-synced showcase-video Agent Skill: HTML/Canvas/SVG/Three.js frame-by-frame + Python numpy/scipy score + FFmpeg. No generative models.

Windows 微信 4.x 聊天记录导出、备份与离线归档工具 · WeChat chat history exporter & backup. 支持好友/群聊、头像、图片、GIF 表情、音视频、文件、链接、小程序、引用回复和合并转发；支持 HTML、JSON、JSONL、TXT、CSV、Markdown 导出、批量任务、消息搜索及时间筛选，提供一键安装包。

A Claude skill for directing, building and verifying code-rendered videos (HTML/Canvas → MP4): principles, gated workflow, QA scripts and evals.

在 Android 手机上本地部署和管理 AstrBot 与 NapCat，内置 PRoot Ubuntu 运行环境，支持原生管理界面、WebUI、日志、备份恢复和独立更新，无需 Root。

One button: why the game stutters, why it lags and why it won't start. Pitstop measures with PresentMon, explains in plain words, fixes Windows only, and undoes every change in one click.

Explore central Warsaw in voxels - slightly inspired by Minecraft, and MagicaVoxel. You can change the date, time of day and weather, explore the city, or click on a pedestrian to control them (here a bit of inspiration from Dungeon Keeper). Works best on desktop, but I tried to make it usable on mo

An Android AI Agent built on DeepSeek Harness, with Android Use tools, voice and a cat companion.

I have been researching what the ultimate diff tool would look like, based on actual diffs in open source repositories. OmniDiff can diff: code (25 languages), config, images, PDFs, archives, cursors, fonts... It's fast. It can diff C++ files of tens of thousands of lines in under 100ms, on a 2023 T

Open-source live customer chat

I've been working on a fun little app that paints geologic maps over landscapes using augmented reality. You can use it to identify what the mapped rocks are, read descriptions about them, and view the earth as it looked when they formed by turning back the continent positions. It spun out of some a

I've refreshed StarSkirmish Bench, a benchmark where LLMs play StarCraft BW by writing code, with results from the flagship models of OpenAI, Anthropic, Google, and Muse

FOSS, Basically it plugs into your existing coding agent workflow and every time you push to prod it'll throw up a questionnaire that checks if you understand how the code you're pushing works.

Hi all I was pretty terrible at singing, now I’d say I’m bad but not terrible. This is because I’ve been using a singing app (won’t name it here) that scores me on my pitch and timing throughout the song so that I can improve. Lately however, the app I’ve been using has flooded their song list with

I first released those in back in 2020 and now I finally added more architectures, Kernel selector, syscall descriptions and a few other niceties. It should work a bit better on mobile devices too but I am no CSS expert. The API is at https://api.syscall.sh

I made this ahead of the Ocarina of Time remake which comes out in 17 days. I remember the feeling of playing it as a kid but I hadn’t kept up with the story so I built a timeline to catch up before the Door of Time reopens. Nintendo’s own timeline is the authority here (Hyrule Historia and their ch

Hi HN, I’ve been working on esp32sim, an open-source ESP32 emulator that runs in the browser. The fun part of the demo is that there is no ESP32 involved — the firmware is executing in the emulator. The goal is to make ESP32 software easier to experiment with, test and simulate without always needin

Hi HN! Im Katriel, and im a Security Researcher/Enthusiast and in the wave of AI, i wanted to build that next gen of security tooling that surpasses the current tools, and even the paid industries with an open source engine. I built MailAccess as well, which is going to be the best damn email osint

No AI used for this btw.

Hey HN, I'm Christian and this is a new OSS project I've been noodling on for the last couple of weeks. Hob is a free, MIT-licensed desktop app for Mac, Windows and Linux that works on your files the way the Claude and ChatGPT desktop apps do, except the model runs on your own computer. It uses open

I was playing around with visualising the S&P 500 by market cap and decided to add employees to each company's bubble. What surprised me was how empty some of the biggest companies looked. Nvidia is worth $5.2 trillion but employs only 42,000 people. That's around $124 million in market cap per empl

I wanted my humble Claude on mobile to access my WhatsApp messages but the only options I could find either required WhatsApp Business or an actual server to run Baileys on. I wanted to run it for free on ClaudeFlare and with my personal WhatsApp account, so I built this. Important feature - it conn

This popup has been a constant gripe of mine for years. I almost NEVER want to allow this permission and there is no system setting to disable it globally and prevent the popup from interrupting your typing, etc. This tiny swift app I built will autoclose it in 1/4th of a second and leave behind a l

Encarta is super nostalgic, and I was surprised it wasn't available to use online. So I embarked on the difficult task of making it so. The way this works is the most convoluted, nonsense and brittle system ever... but it works as a statically hosted gh-pages site! Please note: All the material on t

Hey everyone, Inspired by Herdr, I've built an agent multiplexer that I've been using as my daily driver for a few weeks now. I think I improved on the concept in a few ways, focusing on the ergonomics I always wished I had: I show you what the agents are up to, along with a running feed of their ac

Instead of trying to run DOOM on things, I have instead decided to use DOOM (many, many, many doom games actually) to create a transformer. For a lot of the math required I essentially had to use DOOM game mechanics and voodoo dolls (DOOM is turing complete btw) and exchange them with the actual ope

I've worked for a long time in the storage field during my career and ZFS is the piece of engineering I admire most in that space. I wanted a way to pay homage to it and to explore and better understand its internals. So I built Uberblok: a museum of ZFS. A deep dive into copy-on-write, txgs, vdevs,

To give you some context on the project. I'm a solo founder and I use AI heavily in my work. The idea came from wanting players to discover cities. Each city has its own history, so every case is set in a real city with real public places. The crime and the people are on other hand invented. The par

Hey all, Kartik from Omnara ( https://omnara.com ) here. We're building an open-source API for running durable agents. You create an agent with an API call, and Omnara runs the agent loop, gives the agent sandboxes to run commands in, and handles secrets, permissions, and RBAC. Each agent's state is

A recent (unwanted) webOS update that got installed on TV prompted me to start going down the rabbit hole of writing new TV software. After a couple of weekends and massive help from 4 different models, finally managed to get v1 working. My daughter enjoys navigating TV through speech while I get to

Hi HN, I'm Peter Bishop and I've been working in graphics and web tech for over 25yrs. I've recently launched Death Plan Switch to solve a major problem in my succession plan. What if I go missing or die? The right people are told and my business can continue to operate for my clients. There's a bac

All the ideas came from the boot sector demo scene where people had been writing chess and BASIC games in 512 bytes, even a C compiler. I wondered what one can do using a neural network instead of a program and generating boot logs for non-existent hardware was something fun to try. Entire inference

Video: https://youtu.be/-CfCyvIKYyo?si=hCLuStkXxanCUJD1 Video on multi-target rendering: https://youtu.be/pJx84jdBDKU?si=HRRd6dgUWXiqeWhq Benchmarks: https://github.com/Proa-Labs/proa-benchmarks

I've missed out on an awesome computer that I could use for a project because figuring out value took too long. Users paste a listing and receive a value grade, dated component estimates and a shareable report. AI reads the listing but my custom built price engine determines the grade (updated every

Hey HN, Ayan here from Finic. We’re launching Kairos, an open source alternative to Sift, Sardine, and other real-time fraud decisioning platforms. Kairos addresses two of the biggest problems facing traditional decisioning tools: a lack of labeled data to train on and dealing with fraudsters that a

Based on vermiceli's annotated disassembly of Contra: https://github.com/vermiceli/nes-contra-us . Thanks for the great work. I ported it in two steps. First to C: the game logic is translated routine by routine from the 6502 assembly, and checked frame by frame against the original in the Mesen emu

Hi everyone! I had the idea for catcopter on my mind for a long time (got the domain ~13 years ago). It's a web multiplayer game where you can fly a dangerous cat and engage in competition with other players and critters (pterodactyls, chickens and angry penguins). I made it initially for me and my

The linked repo is 100% vibe coded, but it was built on a handful of principles: - Most tax software derives trust from the party who maintains it (e.g. Intuit, the IRS, etc.) - Vibe coded software lacks this trustworthiness. - Therefore any formalization should build in verifiability and mechanisms

Why is it useful? - Present slides without sharing the screen and have every one be on the same page. - Present together with other cohosts and all control the current page. - Other features such as presentation collab features. Why should I not just vibe code my own solution? - Its a hassle to main

Hey all — Sharing a thought experiment I put together. The premise: what might declarative programming feel like for the physical world? We’re already familiar with this paradigm in software land (eg SQL etc where we declare what we want and the execution engine figures out how). I didn’t have acces

Hello HN, Swurf allows you to swipe through the real web one page after another. It learns what you like and doesn’t show you the same page twice. The idea came naturally: there’s a seemingly infinite amount of high quality blog posts, random topic rabbit holes, and trending or cool sites that exist

Lately I've been testing frontier models by having them create self-contained web pages that display clocks--sort of my personal version of Simon Willison’s pelican-on-a-bicycle metric. I have been particularly impressed by the variety, interest, and quality of the clocks created by Claude Opus 5.5.

I built a quiz game around TypeSafe's new Jev model, which has vision capabilities. Jev looks at a picture and a question and picks an answer (or taps a place) in about a quarter of a second. I've always loved quiz games and thought this would be a fun way to see what it can do and how fast it is. I

I made hjkl to help myself remember Vim commands. It’s a little browser game you can play when you want to unwind and get a bit of Vim practice in. There are still a lot of commands I want to add, but I hope someone finds it useful in the meantime :)

Hi all, So I have been working on this project KiviDB from February 2026. It started as a project for me to understand rust, having a product with no GC pauses, memory blow up after snapshots and getting OOM on running pods, and that was actually an issue I faced with Dragonfly. I wanted to have som

Hey HN, I’m open sourcing my Hurston-1 narrowband TTS model (Apache-2.0). It is very good with American English and does especially well with Southern American and Regional African English accents. Destined AI is based in Atlanta, and I built this because I’m amazed by what AI can do, and I wanted t

Why is this worth your time? Essentially, this solves two problems of AI-assisted programming: (a) the first problem is how to do oversight and what do oversight of and this is solved through the ORRCF (for Options, Recommendation, Rationale, Confidence, Falsifier) question format (in which models a

I'm a software engineer from the east coast (who has lived in Boston, NY, the bay area, UK, France), and I built a task system called 3 & Done. It's the place you trust to store everything you need to do. It accepts voice input for rapid entry, as well as text (it stores the audio locally so you can

Hi HN, I kept wiring Ben Eater's 8-bit computer wrong, so I built a realistic virtual breadboard editor. Some of the nice features are side-by-side diff, scope, schematics auto-sync, auto-router (BBRouter stands for breadboard router), and my favorites: upload from the real Arduino IDE and connect t

I built an api/mcp for local events: pop-ups, one-off events, concerts, etc. currently covering the SF bay area. I've been building a bunch of consumer apps lately around personalization and recommendation and have had a hard time finding this data in one spot. agents can find useful stuff through t

Hi HN! Fakeipedia is an automatic world-building platform which takes an imagined world and makes a whole wiki that you can endlessly explore by clicking red links. I came up with this idea a few months ago after playing around with worldbuilding in Gemini, but I didn't want to release it until a po

https://github.com/dbohdan/glider https://bsky.app/profile/engineersneedart.com/post/3myrs2ngq...

Hi HN, I'm Ruud, co-founder of Lont. We turn company emails into personalized videos. Video captions cost us manual work twice: fixing misheard words, then fixing layout, like lines ending on “the”. Overtone uses multiple models to listen to the audio: gpt-transcribe, Azure STT, and Elevenlabs Scrib

I used my custom built structural extraction engine to analyze 44 DOOM ports across history to see what functions remain, if the keyword structure of those functions remained, if comparable call networks could be seen, etc. - https://github.com/squid-protocol/gitgalaxy

freehire is a filterable, job board aggregator, job tracker, and AI-assisted resume tailoring tool. Saving your skills and preferences changes which jobs appear and how your resume gets tailored. I've looked at a lot of these solutions over the years and found it really hard to find the right mix of

Hello, HN friends. I spent many happy IT lessons messing around on Newgrounds when I was a kid. And, to further age me - Rotten and Maddox! From that, I built my first site at about 12/13 with a friend - essentially, a cheat code site-turned emulator and ROMs mirror link directory. It ended up, for

btw this is already running on all my machines (including a macbook), and i've configured all of them to have routable public ip addresses ;) especially for the mac, my ISP is SFR (over coaxial connection) with only dynamic ipv4, i can use this to get stable v4/v6 addresses very easily for all my de

Feel free to give me feedback or discuss what you have on your mind. I had lots of fun building this, so I hope you have too reading this!

Lasm has been my dream for a good part of 2026. I firmly believe that formal verification is the next evolution of software engineering and programming languages. This next wave will largely be enabled by the incredibly intelligent LLMs that understand formal verification and its programming languag

tl;dr: Agents can play Pictionary. You can connect your own agent, or just watch a game in progress here: https://sketch.wakeshift.ai/games/q5ucru Hi folks! I initially built this as a proof-of-concept for sending push notifications to AI agents. Watching the agents play Pictionary together has been

Road Rash was one of my favourite PC games growing up. I wanted to play it again, but the browser emulators I tried felt sluggish, so I decided to build a browser version using Three.js. This started mostly out of nostalgia. I wanted to be able to open a link and get back to racing and knocking peop

Implemented agent smith since start 2026 with over 1000 specifications which lead to about 500k lines of code. The procedure with that spec-first works well. How do you do it?

Hi HN, I’m Evan from Gauge. We’re open-sourcing our CLI to recursively improve your docs for coding agents. The CLI includes a local execution backend, so you don't need an account to try it. Explainer video here: https://youtu.be/zhLUlIKB1Mg The CLI supports a hillclimbing loop: - set up tasks for

Dovepass answers one question for drone operators: given two points, can a drone legally fly between the two points? I build route planning for delivery drivers and wanted to check what it would look like if the vehicle flies. Drone navigation is different from land-based vehicle navigation. In addi