Projects from HN posts

What are folks working on?

1689 projects published

Chord Network

This tool helps users build chord progressions.

Builders @yungbeto

Creative tools & media

ganymede

A native Jupyter client written in Rust, providing a desktop application for working with Jupyter notebooks.

Builders @a-poor

Developer tools

agent-auth

A tool that gives AI coding agents like Codex SSH authentication without storing private keys on the server. It presents a normal SSH_AUTH_SOCK to the agent, supports sudo through pam_ssh_agent_auth, and routes signing requests to the 1Password SSH agent on an available Mac or to Agent Witness on a phone.

Builders @evanpurkhiser

Developer toolsSecurity & privacy

Agent Witness

A PWA that acts as a remote ssh-agent. Private keys are wrapped, encrypted, and stored locally in the phone's IndexedDB; the vault can only be unwrapped with a secret derived from a passkey, and all key handling and signing happens locally through the browser's Web Crypto APIs as non-extractable CryptoKey objects. Incoming signing requests arrive as push notifications showing the agent-supplied reason, the command being run, and the key requested; after passkey authorization the PWA signs the request and only the resulting signature is returned, so the private key never leaves the phone.

Builders @evanpurkhiser

Developer toolsSecurity & privacy

psst

A CLI for handing 1Password secrets to AI coding agents like Codex. Given a 1Password item-sharing link, it opens a local session that decrypts the 1Password item in memory, lets the agent inspect the available fields before explicitly retrieving only the ones it needs, and refuses to write secret values to a terminal to help keep them out of argv, shell history, and transcripts.

Builders @evanpurkhiser

Developer toolsSecurity & privacy

cool.computer

A model-agnostic workspace for working with AI artifacts visually. Users can annotate and draw on artifacts, and so can their AI agents. Artifacts can be shared with colleagues or friends who, with permission, can send comments to the user's agents. Artifacts can automatically scale themselves into microVMs when more compute is needed (paid feature with an 8GB allowance).

Builders @warthog

AI & automationDeveloper toolsProductivity

Karaoke Pitch

A free, open-source browser extension that adjusts the pitch of a YouTube video and can optionally store the chosen pitch for later, useful for practicing singing and music; available for Firefox and Chrome.

Builders @djeastm

Creative tools & mediaLifestyle & hobbies

Vostride

A project shared via its homepage at vostride.com; the comment provides no further details about its features or purpose.

Builders @pranshuchittora

Forma Nest

A web-based platform for building 3D room designs, free to use with no installation required. Users can create interior design layouts and publish them online to share.

Builders @khalidahmad

Creative tools & mediaLifestyle & hobbies

Lendify

An AI-powered loan servicing platform. The team is seeking cold/warm intros to onboard a set of design partners.

Builders @stuckinaloop

AI & automationBusiness & finance

allyourwords

A Mac app that listens to the microphone and provides real-time feedback on speaking pace, filler words, and similar aspects of delivery during meetings.

Builders @dinferizovic

Productivity

Librium

This macOS document library app indexes files in place so existing folder structures stay intact, working with local, external, network, and cloud folders. It adds tagging, collections, and user-defined attributes, and offers search with on-device text extraction and OCR. Currently in TestFlight beta and headed to App Review.

Builders @jdechko

Productivity

Six GPUs, One x16 Slot

A DIY multi-GPU hardware build documented in a blog post, assembling six consumer GPUs to run from a single PCIe x16 slot to piece together a performant machine, exploring the many parts and combinations available in consumer GPU hardware.

Builders @dougcalobrisi

Hardware & DIY

Designing an LLM Chat Service (blog series)

A blog series on Substack teaching how LLM chat services work by designing one; two parts are published and a final part is planned.

Builders @mtejo

Creative tools & mediaEducation

Chatty Maps

A group decision-making tool for choosing places, described as a Doodle for places. Users can find a place that works for everyone, create collections of places, and ask for recommendations.

Builders @realty_geek

Community & civic

PaaS offering and communications suite

A new PaaS (platform as a service) offering that includes a communications suite, currently in development with a demo planned soon.

Builders @davidkellis

Infrastructure & hosting

On-prem multi-region KaaS/VMaaS platform

An internal enterprise platform providing totally on-premises, multi-AZ, multi-region Kubernetes-as-a-Service and VM-as-a-Service, with Database-as-a-Service planned next along with some other managed services, built with everything git-driven to satisfy internal policies.

Builders @stroebs

Infrastructure & hosting

stop-bots

A Rust terminal UI (TUI) for managing bot blocking at the nftables and nginx level, helping keep self-hosted servers safe from bots. Released under AGPL v3.

Builders @FabCH

Infrastructure & hostingSecurity & privacy

Polign Recall

Polign Recall provides state and memory management for AI agents, offering append-only state logging and governance. Memory and storage run on a BYOC (bring your own cloud) setup and can work with confidential workloads.

Builders @anuptalwalkar

AI & automationDeveloper tools

Maylo

A Chrome extension providing text-to-speech and reading tools designed to help dyslexic readers access written content online. It supports Google Docs, PDFs, and the web, and aims to stay out of the way while offering better tracking, better voices, and lower cost than existing options. Writing support is planned next.

Builders @zcrar70

Education

Netflix Prize Challenge with LLM (netflix_challenge)

This project revisits the Netflix Prize challenge using LLMs, aiming to improve movie rating predictions. It has reached a 9% improvement mark so far and continues experimentation toward the 10% goal, with code hosted on GitHub.

Builders @quan

AI & automation

StatsBrowser

A statistical analysis suite that runs in the browser via webR. It provides step-by-step guides for running statistical tests and insights on results that highlight statistical pitfalls.

Builders @notanotherviber

Data & analyticsEducation

FoldRoute

A progressive web app (PWA) route planner for folding bikes that combines cycling legs with public transport connections. Currently German-only, with navigation still needing real-world testing; a native Android/iOS app may come later.

Builders @Lars147

Lifestyle & hobbies

SF Sunset Alerts

This website predicts when San Francisco sunsets will be particularly outstanding and sends alerts accordingly. Predictions are LLM-powered to more reliably consume the free-text descriptions of predicted high and low cloud cover around sunset in traditional weather forecasts (e.g., NWS). The page displays the prediction and also shows the current view from several cameras around the city.

Builders @vtjeng

AI & automationLifestyle & hobbies

Three Black and Milds

A written piece titled "Three Black and Milds" depicting a night in Juarez, with no commentary or lesson, portraying the city, its people, and what it sells and what is bought. The author is also beginning an MFA at LSU New Orleans next fall.

Builders @metanoia_

Creative tools & media

moor

A platform for building multiuser programmable persistent worlds, compatible with LambdaMOO, in development since 2022.

Builders @cmrdporcupine

Developer toolsGames

RGBloom

This service lets users create printed photo books in minutes, delivered in the UK for £10 including delivery. It offers a web app plus iOS and Android apps, is privacy-first (no accounts required, optional email wiped after 30 days, minimal data retained for as short a time as possible), and uses transparent pricing with no surprise delivery fees or discounts.

Builders @jakegmaths

Creative tools & mediaLifestyle & hobbies

Spiking Graph Neural Network in Zig

A spiking graph neural network implemented in Zig, built as a self-learning project to run on Brainchip Akida AKD1500 neuromorphic accelerators and Efinix Titanium Ti60 FPGAs, drawing on foundational graph and spectral math.

Builders @OneManHorde

AI & automation

Home lab with SAN, compute rack, and bespoke home network

This project builds a personal home lab, piecing together a SAN and compute nodes from old spare parts and second-hand servers in a newly assembled rack, along with a bespoke home network set up in place of ISP-provided equipment. AI assistance is used to make system customization easier.

Builders @rjbwork

Hardware & DIYInfrastructure & hosting

killswitch-lang

A programming language designed to be impossible for LLMs to read, edit, or write.

Builders @dom96

Developer tools