Projects from HN posts

What are folks working on?

1689 projects published

Eremoterra

An MCP server that acts as a persistent lore record and provides orientation tools for an open world text adventure game played through AI agents. The setting is an empty Earth—all natural landscape with no human constructions until players start playing and occupying it. Built with Rust and RocksDB.

Builders @pontes

AI & automationGames

inslib

An open source inertial navigation library written in embedded C and Python, developed from the author's PhD thesis algorithms, with benchmarks claiming to beat ArduPilot's navigation subsystem.

Builders @janosch9001

Developer tools

Integrated AI-powered Firefox fork

This is a custom Firefox fork that strips out unwanted Mozilla features (Firefox sync, VPN), reworks the UX/UI, and integrates mail, calendar, a Notion-like document library, native ad-blocking, a terminal, Trello-style task tracking, and Harvest-style time tracking into the browser. It embeds AI (Apple Intelligence on macOS and Claude) to search the web on a schedule and email custom daily briefs, maintain a queryable memory of work across multiple clients, pull and cohesively format analytics from multiple web dashboards, program the web via a node-based infinite canvas with live websites in the workflow, and automatically update tasks from activity like sent emails, replacing the need to keep half a dozen applications open.

Builders @ramijames

AI & automationProductivity

Long scrolling page design tool

A tool for designing longer scrolling pages with multiple sections that preserves the visual look and feel while drastically speeding up the experience. Generation of the page takes on the order of tens of seconds (the demo video has 32 seconds of generation time cut out), and it has not launched yet.

Builders @jjcm

AI & automationCreative tools & mediaDeveloper tools

SantaWho

A holiday party game played in person with the whole family on a single phone: a parent interviews everyone for jobs at the North Pole and surfaces inner insights about what each person might enjoy from Santa. It is designed for any age, private, and ad-free.

Builders @dzink

Games

Dreamlist

A platform for collaborative shopping lists, online wishlists, and gift drives. It is ad-free and private, and multiple lists can be stacked into groups of lists to share on social media or with grandparents.

Builders @dzink

Community & civicLifestyle & hobbies

The Resume Chef

A free, private resume builder with 10 templates to get started. Résumés can be exported as a PDF or stored on Google Drive or Dropbox in JSON format, with no paywalls or monthly subscriptions. Online payments via Stripe are planned but pending the author's Dutch KvK number.

Builders @nexawave-ai

Productivity

Reasoning game AI agent benchmark experiment

This project benchmarks AI agents in a research loop, using models to understand and explore builds and gameplay through reasoning-based game AI rather than traditional reinforcement learning. It also includes interactive ways to view the experiment and visualizations of the results.

Builders @dustinlakin

AI & automationGamesScience & research

South Park Animator

A web tool that turns a pasted script into a short South Park-style animated episode, generating the animation and voice audio automatically.

Builders @aero2146

AI & automationCreative tools & media

The Marvelous Brass Chessplaying Automaton

A chess database, playing, and opening-training app for Apple platforms with an Apple-native GUI and iCloud sync between devices. It supports repertoire management and spaced-repetition opening memorisation, and implements human-like computer opponents at all levels using a transformer-based model (similar to the Maia 3 paper) combined with a very small search. It also covers chess variants: a companion Apple Watch app for 5x5 chess, a 10x10 chess Easter egg game, and work in progress on hexagonal chess.

Builders @Oreb

AI & automationEducationGames

CNC DXF box generator (Flet app)

This app, built with Flet, generates DXF files for CNC projects with drawn previews. It is currently in a working state for rabbet joinery boxes with a sliding lid (or with the lid omitted), with a hinged lid option and an improved, more accurate wireframe preview planned next.

Builders @WillAdams

Hardware & DIY

MiserablyUnemployed

A free job site with resume tools bolted on, listing 2.7M+ jobs. It automatically removes any job posting older than 7 days and never allows reposts, so users only see fresh listings.

Builders @ramijames

Business & finance

id-le

A browser-based video game where players can build their own worlds. The creatures' brains are powered by a small language model plus a harness that runs in the browser, and the game is open source.

Builders @nico

AI & automationGames

Beacon

A mobile app for instantly finding which friend is free to talk right now and summoning them in a single tap. Users send a beacon to a group, everyone gets a gentle ping, and the first person to answer gets connected for a 1-1 call while everyone else's signal drops silently. It does not log missed calls, so there is no pressure to answer or return calls. Available on the App Store and Android.

Builders @cjflog

Community & civic

ai-stuff

A GitHub repository of the author's AI-related work, described simply as "ai-stuff"; the comment provides no further details about its features or goals.

Builders @ms_menardi

AI & automation

Crewbird

A field service management and CRM platform for service-based businesses with Google Local Service Ads integration, tracking every dollar of ad spend to determine return on ad spend; the author's father's carpet cleaning business is approaching 3x ROAS with it.

Builders @jzig

Business & financeData & analyticsProductivity

Teletest

This company lets Canadians order bloodwork and lab testing online, bringing the easy lab-testing experience available in the USA to Canada and improving the overall patient healthcare experience in Canada.

Builders @theatraine

Health & fitness

ShopSpec

A parametric, deterministic furniture builder for designing furniture pieces, with a gallery of actual builds; the tool is actively being iterated on based on the builder's personal use.

Builders @variodot

Creative tools & mediaHardware & DIY

Double-Entry Trade ERP

An ERP rebuilt around the plaintext-accounting model, extending double-entry accounting to double-entry trade between parties. It includes a textual DSL for modeling business scenarios (e.g., a sale spanning multiple invoices across countries and currencies) plus intermediate steps like transportation and manufacturing, and aims to collapse typical ERP complications with a simplified price engine that avoids dynamic calculations for most cases.

Builders @mamcx

Business & finance

ColliePWA

A mobile PWA interface for continuing to work with your agents from a phone, meeting developers where they work on the desktop in terminal multiplexers like herdr/tmux/zellij. Remote access can be set up through any front door such as Tailscale, and it does not rely on third parties to run.

Builders @asar

AI & automationDeveloper tools

webfrolic

An identity, security and access platform architected to combine workforce identity (Okta-like), customer identity (Auth0-like), fine-grained authorization (Authzed-like), an IT service desk (ServiceNow-like), and a customer support desk (Zendesk-like). Work in progress: deciding how to incorporate AI agents' needs into the architecture while avoiding security and performance foot guns from administrator configuration, plus feature stress testing and performance testing.

Builders @sandeepkd

Security & privacy

Audion

Audion is a code-first language/environment for creating installations and interactive art. It provides BPM-synchronized threads for music making while also supporting general-purpose capabilities such as drawing, file IO, networking, and hardware control.

Builders @skor

Creative tools & media

Browser WASM kernel (slopshare.dev)

A Linux-kernel-like environment implemented in JavaScript that runs in the browser, where each program executes as WebAssembly. The whole system is bootstrapped from a C/C++ compiler compiled from source with a new target, and the project evolved Docker-like packaging for WASM. It can also run coding agents sandboxed inside the browser with HTTP policies and backend-managed skills/extensions, compiling Codex from source and running pi agent and CC (the old Node one) on a custom JavaScript runtime on top of QuickJS compiled inside the environment.

Builders @daugasauron

Developer toolsInfrastructure & hosting

Kube-DC

A platform for building enterprise-grade private and public clouds, combining VMware, OpenShift, and Railway-like capabilities in a single product. It is completely multi-tenant, built entirely on the Kubernetes API with over 46 custom controllers written in Go and a Radix UI, and provides real managed services including nested Kubernetes, Postgres, Kafka, Valkey, and GitHub runners, plus VLANs, BGP, and shared GPU support. Currently deployed across 12 datacenters, sold mainly to government projects, with the team engaging existing IaaS and dedicated server providers.

Builders @voatsap

Developer toolsInfrastructure & hosting

SingOnKey

A singing training app for bad singers: users sing the pitch line and get a score, and can sing to any original song by listening along rather than the app playing the song itself. Work is under way on Linux and Windows versions, and on internationalizing the app and landing page.

Builders @dsmurrell

Education

Ashdomes

A slow realtime strategy game in the style of Neptune's Pride and Subterfuge, with hourly game ticks and matches that last over a week. Currently in closed alpha.

Builders @yhersk0vitz

Games

tirreno

A security framework with its source code hosted on GitHub and a live demo available online.

Builders @reconnecting

Security & privacy

SuperBlocker

Native ad and URL blocker for iPhone and iPad built on Apple's URL filtering technology, blocking URLs without revealing them to Apple's relays or SuperBlocker's servers.

Builders @aggregator-ios

Security & privacy

JSON Query

Mac App Store app for storing, organizing, and querying JSON with jq or natural language, keeping all data local so sensitive JSON stays on the machine.

Builders @aggregator-ios

Data & analyticsDeveloper tools