Projects from HN posts

What are folks working on?

1689 projects published

MockHack

This service runs sandboxed 'obliterated' (uncensored) LLMs such as DeepSeek-V4.1-Flash-Obliterated and OrcaCyber-Zero that attempt to hack a site, letting site owners test their own defenses against bot-driven hacking attacks. Anyone can try it at mockhack.com.

Builders @timm37

AI & automationSecurity & privacy

Levithas

Levithas (https://levithas.app) is an app and lifestyle movement encouraging people to stop doom-scrolling and passive content consumption and instead learn skills. Its first skill is an interactive experience users can enjoy and play. The project aims to build curiosity, confidence, and personal growth through active skill learning rather than consuming content.

Builders @monidp

EducationLifestyle & hobbies

piclaw

This project is being refactored around pi-durable, an effort described as mostly removing overhead and duplicate code since it was already conceptually close to pi-durable.

Builders @rcarmo

Go port of pi-ai

This project is a Go port of pi-ai, one of a few Go port side projects being worked on slowly.

Builders @rcarmo

AI & automationDeveloper tools

Go port of core SIMD inference

This project is a Go port of core SIMD inference code, one of a few Go port side projects being worked on slowly.

Builders @rcarmo

AI & automationDeveloper tools

Linux-based machinery controller platform

A Linux-based controller platform for agricultural, water treatment, and fertigation machinery. It extends to any number of analog/digital inputs and outputs (AO, AI, DI, DO) to control machines, replacing expensive PLC + SCADA setups with a cost-effective connected solution (Go backend, React UI).

Builders @artificialprint

AI & automationHardware & DIY

waboost

A water treatment machine, the first project built on the platform's Linux-based controller. The team is looking for more clients and is in talks with a grain separator company and a fertigation company.

Builders @artificialprint

Hardware & DIY

PNG differential analysis site (difftest-png)

This website publishes differential analysis results for PNG libraries, comparing implementations against the 3rd edition of the PNG specification, with an option to select the 2nd edition. The underlying testing found numerous bugs in PNG libraries; the site still lacks an option to show only differences that matter by real-world judgement.

Builders @MrMetric

Developer tools

Game Gear hardware test ROMs

This project runs a suite of test ROMs on multiple revisions of Game Gear hardware to probe its poorly-understood behavior; the resulting differential testing has exposed numerous bugs in Game Gear emulators.

Builders @MrMetric

Developer tools

Patched SDCC build

This is a patched build of the SDCC compiler with fixes for its miscompiles and performance issues, assembled from knowledge of the full downloaded issue tracker plus fuzzing; it is used to compile the author's Game Gear test ROMs.

Builders @MrMetric

Developer tools

Patched Mesa build

This is a patched build of Mesa that fixes several bugs encountered while trying out mesh shaders.

Builders @MrMetric

Developer tools

Patched Fossil build

This is a patched build of the Fossil version control system that fixes bugs randomly encountered during use.

Builders @MrMetric

Developer tools

Custom printer driver

This is a custom printer driver written to replace the inadequate stock driver.

Builders @MrMetric

Hardware & DIY

LLC Simulator

A free one-stop guide website for people looking to start an LLC.

Builders @stankalachev

Business & finance

dushed

A personal knowledge management web app that combines flashcards, bookmarks, notes, web feeds, files, and Kindle highlights into one place, letting users access all their knowledge sources together and link sources to one another.

Builders @komuW

EducationProductivity

homeassistant.koplugin

A KOReader plugin (for the open-source ebook reader software) that lets users control Home Assistant entities without leaving the book they are currently reading. In development for almost a year, it has evolved from feature-heavy beginnings toward a simpler design focused on clean code and avoiding unnecessary complexity.

Builders @sputge

AI & automation

Minecraft MCP project

An MCP integration for Minecraft where AI models analyze topographic maps of the terrain and build in the game using Starlark scripts. The map-based approach keeps tool calls low, making it fast enough to run in voice mode.

Builders @wmil

AI & automationGames

daily.dev for Startups

This service helps early-stage, low-budget companies distribute their product, get in front of developers at scale, and increase product awareness.

Builders @idosh

Business & finance

Flower

A self-built automation harness with a memory and context layer, wired into a build/ship/deploy pipeline to automate the software development and release workflow.

Builders @Implicated

AI & automationDeveloper tools

go-llm

This is a locally-runnable AI assistant that supports voice notes through Telegram and connecting MCP servers, includes easter eggs, and runs in a single Docker container needing less than 100MB of memory. Email/calendar access is planned next.

Builders @djthorpe

AI & automation

Modelmathics

Interactive course that teaches how large language models work by having learners implement one from scratch in Python. Starting from an empty file, students write a tokenizer, a bigram model, attention, and a Transformer themselves, with tests verifying each step before moving on; at the end, published open weights run on the learner's own code. Lessons run in the mm terminal app with code kept in local files on the learner's machine, and Stage 1 (11 lessons) is live as a free private beta.

Builders @lucasov

Education

Review Box

A tool for helping with GitHub Pull Requests. It includes an integrated dashboard showing what to review, integrated symbol understanding, a clear split of reviewed and unreviewed files, and a result diff view that shows only how files will look in the end, letting the author avoid opening GitHub directly.

Builders @rado_stankov

Developer tools

mojibake-rs

A Unicode library being ported to Rust, published as the mojibake-rs crate.

Builders @program

Developer tools

Million-lock door puzzle game

A real-time multiplayer puzzle game centered on a door with one million locks; some locks open with combinations and others can only be opened by more than two players. Built as a way to practice with PostgreSQL, currently at an HTML prototype stage.

Builders @program

Games

Sundown

A shared calendar PWA for couples that aims to provide a distraction-free scheduling experience. Built with Django, HTMX, and SQLite, hosted on a Hetzner VPS.

Builders @avramdames

Productivity

Cekyukle

Turkish-language web app built for a street photographer that lets people who appear in his photos download their photos when available and give permission for them to be published. It is offered as a hosted multi-user service at cekyukle.com, with an open-source single-user version (no multi-user requirements) on GitHub.

Builders @crazybLanKeT

Creative tools & media

Isolated coding agent container with llama.cpp and Tor

This setup runs the coding agent in an isolated container environment, integrating a locally served llama.cpp model and routing traffic through Tor as a proxy.

Builders @eden-u4

AI & automationDeveloper toolsSecurity & privacy

Loop

Loop is a mobile-first companion workspace for coding agents. It runs on the user's own computer with no account, server, or app store, and pairs with a phone via a Cloudflare quick-tunnel-generated QR code. It wraps agents the user already uses (Codex, Claude Code, Pi, OpenCode, Antigravity, Muse Code, Grok Build, or any ACP agent), each keeping its own context, tools, sign-in and billing, with local models supported through Pi or OpenCode. The UI is built around agent results as the key unit of work, letting users navigate them easily instead of relying on chat, for familiar one-handed mobile interaction.

Builders @jamesasefa

AI & automationDeveloper tools