Projects from HN posts

What are folks working on?

1689 projects published

Starkeep

An open-source, fully serverless self-hosting system that lets you keep your own data and build your own apps running on your own devices and AWS account. Its common core provides file indexing, syncing, and access control, making apps easy to create and interoperable, with easy deployment and minimized running costs. MIT licensed.

Builders @kolleraa

Developer toolsInfrastructure & hosting

Starkeep Photos

An official photos app built on the Starkeep self-hosting platform, implemented for web and Android so far.

Builders @kolleraa

Creative tools & media

Scenema

A platform for creating whiteboard and 2D animated explainers, using AI to maintain character and voice consistency across videos. Originally aimed at cinematic AI videos, where short model clip lengths make longer videos hard to manage, it now generates minutes-long explainers up to 30 minutes with studio-level animation in whiteboard and 2D styles.

Builders @beemaestro

AI & automationCreative tools & media

VibeVoted

This platform assesses products and runs product competitions based on rankings from 10 leading AI models from 10 different labs. Each product also receives feedback and recommendations for improvements.

Builders @stanislavb

AI & automation

No-AI programming video series

A video series of the author programming without AI assistance, working mainly on cherished personal projects, aiming to preserve and amplify the traditional craft of programming.

Builders @bitwize

Creative tools & media

gangway.sh

A self-hostable, Apache 2-licensed tool for quickly deploying small sites and apps, with an interface ergonomically similar to Claude artifacts for open source harnesses. It is designed to be easily forkable and kept in active development.

Builders @charlesabarnes

Developer toolsInfrastructure & hosting

GEGL/babl-based image editor for Mac

This is a raster/vector/pixel image editor for Mac built on GEGL/babl, using Metal for all on-canvas effect previews to achieve both speed and full XCF compatibility.

Builders @yoz-y

Creative tools & media

Agentic learning IDE with integrated DOS environment

This IDE includes an agentic plugin that ablates functions or pieces of code for the user to complete, so learners build toward a working program instead of doing leetcode-style exercises. It can also guide users through bug fixes and other tasks, and ships with a fully integrated DOS environment including a functioning debugger and asset editors. It also works on iPad.

Builders @yoz-y

Developer toolsEducation

fxdax

A port of Fuchsia's fxfs to Linux, built on a novel virtio device that stores file data in object storage. Intended as a file system for VMs that supports DAX to avoid page cache duplication while maintaining high performance.

Builders @rvcdbn

Infrastructure & hosting

Codako

Codako is a web-based programming-by-demonstration environment for building games and simulations, a rebuild of the classic Cocoa / Stagecast Creator. It uses a simulation environment with a low floor and high ceiling for creativity to introduce programming fundamentals, and is being user-tested via game-building jams in local libraries.

Builders @bengotow

EducationGames

fastagent

An open-source tool for deploying durable AI agents as web services on AWS, Cloudflare, and Fly.io at very low cost using MicroVMs. Agents run in the background and complete their work silently without chat interaction, similar to how system monitoring and logging operate.

Builders @yangshi07

AI & automationDeveloper toolsInfrastructure & hosting

Boot.dev

Boot.dev is an online platform for learning software development through interactive courses. The team is keeping the platform running and expanding its catalog with an in-browser update to the Kubernetes (k8s) course, plus new C, Terraform, and bash courses in the pipeline.

Builders @wagslane

Education

Oculette

This hardware-plus-AI device pairs an ESP32 camera with a vision model that users prompt to watch things and send webhooks, enabling monitoring of analog gauges, legacy equipment, and sourdough starters. It includes an air quality API that reads the display of a cheap monitor, and supports direct camera access via MCP so Claude can help debug the hardware. Cloud video streaming is on by default, with a LAN MCP mode option for sending images to a local model, plus cropping, privacy screens, and no image retention. The rationale for dedicated hardware over a spare phone is plug-and-play setup, quality control, not tying up a device, and lower long-term price.

Builders @oculetteai

AI & automationHardware & DIY

Scripture

This website delivers a couple of Bible verses each day for daily reading according to the Russian Orthodox tradition; it is still not fully functional but already serves that purpose.

Builders @wsc981

Lifestyle & hobbies

MacGames

This site hosts reverse engineered vintage Macintosh games from the System 7 era that can be played in the browser.

Builders @wsc981

Games

Daily crossword puzzle app

This app offers a daily crossword puzzle that users can play online, with a new crossword served each day at 29words.com.

Builders @m00dy

Games

ISO Hoops

A 3D pixel-art basketball game built with JavaScript. It offers five game modes (free shooting, 10 free throws, HORSE, beat the clock, and 3-point contest) across five courts with dynamic day/night cycles, and runs fully offline with no backend.

Builders @vldszn

Games

mensara

Multiplayer shared memory platform so a whole team can work together with AI coding software. It lets multiple AI agents (such as muse, grokbot, and dots) all know the user immediately and collaborate.

Builders @technotony

AI & automationDeveloper tools

SRS language learning app with story worlds

A language learning app that keeps track of the user's SRS (spaced repetition) study items and builds stories set in worlds the user creates to help review them, combining the author's favorite aspects of other language learning apps.

Builders @JimboOmega

Education

Human Sort

A browser-based sorting game inspired by One Million Checkboxes, where instead of just clicking boxes the goal is to sort the board; built as a casual game to kill time.

Builders @parhd9

Games

Orbi

Orbi is an open-source (AGPL-3.0) AI agent that takes a software request all the way to a release. You describe what you want in a sentence; an AI agent writes the code and opens a PR, a separate review session checks it against the acceptance criteria, then Orbi merges and tags a release. It also handles ops issues like deploys and debugging. In October, 190 of the 197 PRs merged into Orbi's own repo were opened by Orbi.

Builders @xqliu

AI & automationDeveloper tools

Mains power frequency monitor

This open-source-to-be hardware tool monitors mains power frequency with microsecond resolution and is being optimized (better assembly code and optocoupler choice) to reach hundreds of nanoseconds of timing precision. It was conceived as an experiment to use the power grid as a kind of radio telescope for correlating phase jitter with space weather, and has already captured grid events such as generators spinning up to maintain frequency. The hardware will be open sourced when complete.

Builders @Saigonautica

Hardware & DIYScience & research

Procedurally Generated Civilisation

A procedurally generated civilisation project inspired by Crusader Kings mechanics, in which character personalities drive most of the simulated historical events.

Builders @threetwoonezero

Games

Coconut Water Review Site

A hobby website publishing coconut water reviews, with around 30 different brands reviewed so far. The reviews explore coconut water terroir, favoring unpasteurized water from young nam hom coconuts grown in central Thailand; the site is run for fun rather than profit.

Builders @mcbobgorge

Lifestyle & hobbies

Doom or Bloom

A small open-source project exploring AI futures and AI safety.

Builders @transitivebs

AI & automation

Cultural Alignment

A small open-source project exploring cultural alignment as part of AI futures and safety.

Builders @transitivebs

AI & automation

Triplec.fm

Triplec.fm is a not-for-profit with the goal of helping more people listen to and go experience live music in Canada.

Builders @verelo

Lifestyle & hobbies

Dimidium_Bellerophon

Dimidium_Bellerophon is a DSL (domain-specific language) for 3D printer automation, currently delivered as an IDE built on Java (Spark). Planned features include networking and printer management, and a non-planar slicer that outputs the DSL instead of static G-code, enabling more dynamic, point-by-point control of prints.

Builders @Disla_chunga

Developer toolsHardware & DIY

Latent Space Cultural Concepts Experiment

This project experiments with LLMs to test whether the structure of latent space can be used to identify culturally bound concepts such as "fan death", optimizing runs of the Qwen model on a local GPU to test theories.

Builders @Natsu

AI & automationScience & research