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GroupImg update accelerate k-means with multiprocessing to group images

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Hyde – An out-of-line C++ library documentation tool

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termwm: A floating WM of terminals inside your terminal

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FFdynamic – Extend FFmpeg with A/V process composition, runtime control

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SQL Viewer – UI for uber/queryparser, written in Haskell

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Webpage to PDF Microservice

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Lipreading with Deep Learning

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Optimage – Advanced image optimization tool

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Applying for jobs? Manage all your interviews in one place

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A cookie stealer disguised as a GIF image

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Occupod – a solid mobile sleeping shelter

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Coffee Chat – Trade your expertise

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Meeting Stats – Show your boss how much of your life is in meetings

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Beat my tank through strategy and programming

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App Academy Open – Free Online Coding Bootcamp

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How to start a business in France

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Mole – an open source tool to easily create ssh tunnels

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Serverless Free Text Search with AWS Lambda

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All Clear Weather – creating new live weather datasets with ML

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GraphQL lib for real-time apps

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YC Hackathon without writing code

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Personal avatar generator built in ReasonML

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Polar – an offline web browser with annotations and tagging

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Dangless — create non-dangling pointers (master thesis)

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Physically Based Rendering – Online Edition

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I Built a Metasearch Engine with React, Redux, Express and TypeScript

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UXHunt – Your Daily Dose of UX Intelligence (and Our Side Project)

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A JavaScript budgeting app that implements a KNN to make predictions

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Dynamic perler patterns (fuse bead recipes)

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Oat++ – Zero-dependency C++ framework for high-performance web services

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Experience Colorblindness on the Web

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Pictureddit – different subreddits different photos

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Lisp with copying GC in 537 lines of C (plus Lisp 1.5 on top)

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I made a programming language with Spotify playlists

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Back endLab – code free web app back end builder

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Comprehensive Tutorials in Deep Learning Using TensorFlow

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FaaStRuby 0.2 released – feedback appreciated

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CSS Grid Playground in Webflow

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Callbaxx.js – A utility library to bring callbacks to synchronous code

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WebRTC signalling data using QR codes

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Percollate – a command-line tool to grab web pages as PDFs

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StrongDM – 1 click access to any database or server in any environment

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Tableau-Like Data Visualizations in JavaScript

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Test Your Culture – What's your (English-speaking) cultural knowledge?

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WebRTC implementation for Python using asyncio

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Firebase2graphql: Migrate from Firebase to Realtime GraphQL on Postgres

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Introducing the “Alan” low code platform

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Compact Sparse Merkle Trees – Efficient Non-Membership Proofs

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Res(ts): Auto-Generate TypeScript Models for Django Projects

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CoinMarketBook – CoinMarketCap, but with a different metric

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Pure CSS toggle Web component

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Executing a 51% attack on a real live CryptoCurrency, livestream

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We built a code school for Fortnite players

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Fork, a toy self-hosting language and compiler that compiles to C

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Trigonoparty – JavaScript trigonometry visualization

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Markdown page – Create a web page with nothing but markdown

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Monero Web Miner for Low-Tech Static Sites

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Bitdog – a completely hackable home automation toolset

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CryptSend.io – Share encrypted files with randomly generated links

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A simple resource for finding and trying variable fonts

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Portal Cloud – VPN Service for Teams

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Should I Send It? Helping you understand your mood in emails

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Solo – Open-source FIDO2 security key

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JohnnyDepp – A tiny dependency manager for modern browsers (862 bytes)

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A website that converts any IPFS file to HLS and reups it to IPFS

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ekill – Like xkill, but for annoying web page elements

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Voice Overlay for iOS and Android Apps

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My implemented vision of a PIM

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I made a list of programmers coding live

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Day of the Dead website with 12 Free illustrations

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Vulkan bindings for JavaScript

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Rubik's cube variants in different shapes and sizes using canvas 2D API

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MicroMDM – Open Source MDM Server for Apple Devices

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Concrete Calculator for your weekend projects around the house

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We made a real-time editor for web database apps. Looking for feedback

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An Easy Programming Language That Runs in the Browser

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Pictureddit – Reddit pictures with wiki info

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DNS rebinding protection for Express.js

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Docute – Fast way to create a documentation site

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Oh Caption – Crowdsourced Image Description Plugin

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Build your own Rodak - portable Kodak Brownie powered by Raspberry Pi

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Strife, a 2d game library for Go

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A simple GUI app to make Linux touchpad gestures easier

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Leptus – The Erlang REST framework (new release)

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Minimal Bookmarking Site

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Fiets – Opinionated feed reader (and filter)

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Kubespy, a CLI tool for observing Kubernetes resources in real time

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Browsertron – Run all your Selenium tests in parallel

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Variables War, a kid-friendly code playing-cards game

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Search for a domain expert on Reddit

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Trolley lets you take payments from your static site

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Memex – annotate and instantly recall any website

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You Need Feeds – Introduce friends/family/workmates to RSS and webfeeds

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Apify SDK – A scalable web crawling and scraping library for JavaScript

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You Don't Need WordPress

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Intercept.rest – 10x Faster API debugging

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Chelodina – A Logo-to-Python Transpiler

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Meetter – Reduce time wasted by meetings

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Vue.js applications that interact with Ethereum smart contracts

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Podflix – Like Netflix for Podcasts

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Plash – Build and run containers

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Mastering Modular JavaScript

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A new protocol for packet radio including ECDSA and compression

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Python library to create Siri Shortcuts

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Thi.ng/hdom: S-expression based, pure ES6 UI/VDOM components

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VNote 2.0 provides the best PlantUML edit experience via Preview Tunnel

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Super Smooth Tab View – Made with Pure CSS3 and JavaScript

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Solo, open source FIDO2 security key

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Hacking slot machines with a buttonhole camera and brute-force search

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NuScenes – largest open-source self-driving dataset ever

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SAN – a Safe and Nice TOML/YAML Alternative

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Sublime Merge – Git, Done Sublime

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Found a serious data breach at a bikeshare and how to unlock bikes

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I made a privacy-first minimalist Google Analytics

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Panther – A browser testing and web crawling library for PHP

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Visual CSS Grid Editor

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My new SaaS side-project, after years of open source

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JPL Space Calendar iCalendar Support

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Arc Studio Pro – Collaborative Editing/Version Control for Screenplays

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Creating Land-Use Maps with an HP 7475A Plotter

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Simplified music notation

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Feedseer – A Mastodon instance to filter out posts based on content

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Lunar Lander type game with computational fluid dynamics

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re:consent – browser extension which helps you manage consent settings

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Condor – A library for building scalable TCP servers in Erlang

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TechYaks – Best of 50k tech talks ranked by confidence intervals

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The world’s first silent, wearable breast pump

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rwtxt – a space for reading and writing text

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Qwant – An excellent alternative to Google

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Guitar Dashboard – Open source music theory explorer for guitarists

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Uplink – Build Reusable Objects for Consuming Web APIs

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Mindstamp – Make Any Video Interactive in Seconds

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Design and Simulate Molecules in Virtual Reality

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Acolytefight.io – Multiplayer Skillshot Arena HTML5 Game

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A UI for generating WebAudio code

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Snipper – Lets you collaborate on the same code in real time

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Start a small crowdfunding campaign to prove product demand

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MAWD – Simple web accessibility testing for developers

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Galiboo – An A.I.-powered API for music

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Anycoin Trending – Algorithmic Cryptocurrency Newsfeed

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Google Photos API (now fully available)

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Build presentations with reveal.js and Scala

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Hacklily – sheet music editor

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Namegine – find the best name for your start up or product

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Ghuser.io – Complete GitHub profiles

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Zero – Local file system transparently swapping to the cloud

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Prod – Blocks addictive websites until you've finished your to-do list

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SearchMage – Infinite Scrolling and Filtering

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Linuxify – Transform the MacOS CLI into a GNU/Linux CLI Experience

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Interactive Portraits with Speech Synthesis

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Reminiscence, self-hosted bookmark manager and personal wayback machine

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Micro JavaScript framework inspired by finite-state machine

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A simple golang utility to ease deployments via SSH and SCP

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Clipboard Plus, free and open sourced clipboard manager for windows

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BitMidi – Wayback machine for old-school MIDI files

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HuggyList: A micro-blogging platform in list format only

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Interactive Calculus via LaTeX

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Py-spy – A new sampling profiler for Python programs

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Snowy – a new image library for Python

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Vim-which-key: Vim port of emacs-which-key

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Nodebook – Minimalist Node REPL with Web UI

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AgentMaps – Turn maps into living societies

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magicsandbox.com – learn k8s on real infrastructure

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Chat with people around you

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Select Star SQL, an interactive SQL book

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A simple order page for freelancers

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New Game Written in Octaspire Dern; Lightcube

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feediary – RSS reader with zero tracking and zero ads

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2048.cpp – Play 2048 in directly your terminal

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Permafrost Engine – OpenGL 3.3 Real Time Strategy Engine in C

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Portable matrix multiplication library

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Proven – keybase powered alt to Twitter's verified. Now with HN support

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A smarthome dashboard concept using zircle-ui

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I'm 12, learning JS, and wrote Wolfram's cellular automaton in Node

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De-sk, modular office desk system

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Arcentry API – Programmable Cloud Diagrams

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Efficient data loading using zeta distributions

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Ledger-analytics – Analytics for ledger-cli

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Making Slack better with BetterSlack

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Quetree – A Q&A site that is tree-based and hierarchical

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How privacy-friendly is your site?

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Remote jobs for people with disabilities

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Reducing the size PCSA to that of HyperLogLog

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BuzzFeed open source SSO

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I'm sorry, I put Windows 95 into an Electron App

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I am X years old and [Google autocomplete]

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Crypto Table – A Periodic Table of Cryptocurrencies

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SVG 3D Builder – Build 3D Models with SVG

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Agile Dieting

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A single command terminal configuration installer

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Create your own man pages so you can remember how to do stuff

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Umbrella JS, a 2.5kb jQuery alternative

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FreshJobs – An aggregator of junior and entry-level jobs

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Interactive Wallpaper animated art tool (symmetry groups)

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TinyGo – Go compiler(based on LLVM) for microcontrollers

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Map of Related Books for “Designing Data Intensive Apps”

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Favioli – Replace blank tab icons with unique per-domain emoji

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Find recommendations from good people

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A free and open-source command line note organizer

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git-bug – Distributed bug tracker embedded in git

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I made wits.io where writers can earn money with book summaries

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P2p IRC-inspired browser chat on WebTorrent

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Eno – A lightning fast, user-friendly YAML/TOML alternative

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Buzzngo.io – Real-time public polls using RethinkDB

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Greetings cards that don't skirt around your emotions

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Wayland compositor in around 500 lines of annotated C

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A chrome extension that fades out old links on HN/Reddit/News sites

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Simple way to obtain pseudorandomness from CPU context switch in Go

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Unyt – Handle, manipulate, and convert data with units in Python

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A Go implementation of TensorFlow's streaming quantiles estimator

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Paperkast

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Rb – Turns Ruby into a versatile command line utility

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A syntax-diagram generator for rust's macro_rules()

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unicode.style

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HSTR – easily view, navigate, search and manage your shell history

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trackerjacker: like nmap for wifi + triggers

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A successful side project in medical devices

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Comprehensive list of 8000+ startups “Funded in 2017”

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Google Open Source Blog: OpenMetrics Project Accepted into CNCF Sandbox

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Just Get Me Food

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Didyougogo – An Altavista slayer

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A cross platform app for mirroring the clipboard between synced devices

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Local Sheriff – Chrome extension to show PII leaks to third-parties

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A simple interactive resume-making tool

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WorldBrain, full text, local search of your browsing history

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CattlePi automated setup and updates for Raspberry Pi(s)

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A parser for electronic component descriptions

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A Rust macro that parses Java-like syntax and runs it as a Rust program

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Dankenstein – Markov Chain Twitter Bot Generator

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Ultralight – Lightweight, Pure-GPU HTML UI Renderer for C++

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A decentralized index of banned users and where to find their content

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cURL for GraphQL with autocomplete, subscriptions and GraphiQL

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I built Analytics for my Ghost blog

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I built OLEDify to help save battery by pure-blacking your wallpapers

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Retool – build internal tools faster

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A Chrome extension that extracts used CSS and combines it into one file

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An online drawing tool that lets you change colors via MIDI controller

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NES Party – Online Multiplayer NES Emulator Using WebRTC

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Extension to highlight and tag users on Hacker News

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Pts.js – A library for visualization and creative coding

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Dancemusic.wtf – Quiz Game for Learning Electronic Dance Music Styles

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Inko – A safe and concurrent object-oriented programming language

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Play Overwatch (and anything else) in your browser

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A raytracer to shade and visualize topographic maps in R: Part 3

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Ascii linechart with console, html and image outputs written in PHP

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PJON v11.1 an independent, decentralized, open-source protocol

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I made a tool that made me 10 times faster at Git

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Polyhedra Viewer

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Shade – a quick-and-dirty glsl prototyping tool

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HugeGraph: an open source fast and highly scalable graph database

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How far can you go?

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I trained a neural network to learn Arabic morphology

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Woye – Insert plain text, get information from YouTube and Wikipedia

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DomTerm – a web-based rich terminal emulator and console

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Standup tool that works like Snapchat stories for remote teams

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Wikipedia2Vec – A tool for learning embeddings of words and entities

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Life – A secure, blazing-fast, cross-platform WebAssembly VM in Go

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StyleURL – Edit CSS via Chrome Devtools and turn the diff into a gist

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GoUmbral – ECC arithmetic layer, and soon-to-be proxy re-encryption lib

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BountyGraph: Crowdfunded Bug Bounties and Security Audits

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Lumie, an opinionated NPM module to create better apps and ship faster

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Toy – the thin c++ game engine

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Make a business model canvas in your browser

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Owl, a new kind of parser generator

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Moon – 3kb JavaScript UI compiler

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Kontext – Learn new words by watching movies in a foreign language

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Pony Programming Workshop

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YC Review – Get your YC application reviewed by an alum

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Layoutit – An interactive CSS Grid generator

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Telepost – Create a blog from a Telegram channel

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Percy – A Rust and WebAssembly isomorphic virtual dom implementation

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CSS Scan – Instantly check or copy computed CSS from any element

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Haml-rs – Haml parser in Rust

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Web DSP audio editor

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Codemason – Deploy and host your apps without the hassle

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Trends a GitHub trending PWA

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Mandalagaba – Create beautiful mandalas and tessellations online

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{lambda speech}

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Opensource WebRTC communication platform

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News geolocation website

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Checklist of over 100 directories to submit your startup

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Video Hub App – like YouTube for videos on your computer

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Loc2country – Location coordinates to country in microseconds

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My open source non-linear notepad app

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Musoq – Use SQL on various data sources

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Compare passports/benefits of second passport based on the one you have

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Kanban for E-Mail

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Amatino, a double entry accounting API

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Learn how to work remotely from people doing it every day

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My Particle Playground with Glowing Light

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Bo, the Swiss army knife of data examination and manipulation

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GdbShellPipe – Pipe output of gdb commands to shell

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Ansible Kernel – Run Ansible Tasks and Plays with Jupyter Notebook

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Pinpointer, a Firefox extension to share links to page elements

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CloudForecast.io: Daily email report to help you monitor your AWS cost

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Glycemic load calculator

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PageFish search algorithm

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I ran sentiment analysis on Show HN comments and got the meanest ones

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Graphql-engine: Fast, instant GraphQL APIs on Postgres

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Font Playground – Play with variable fonts

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A Gin middleware for reporting to statsd deamon

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three-laser-pointer – Interactive laser object for VR-like scenes

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Simple Email Sending Service (SESS)

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Router7 – A pure-Go implementation of a small home internet router

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Announce and discover GitHub repos

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Alohomora – secret distribution over credstash

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Code::Stats – Free programming stats service

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Online challenge: Build a CPU from scratch

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Solving Rush Hour, the 6x6 Sliding Block Puzzle

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Markdown New Tab – A new tab replacement to jot down notes in Markdown

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Gaia – Build powerful pipelines in any programming language

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Open Source API access control firewall/proxy written in Go

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Five Thousand Novels, Ranked by Vividness

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After Dark – A retro dark theme for Hugo

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Browsh – A modern, text-based browser

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Identify a spoken language using AI

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Clothes shopping app UI built in React Native

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Midibin – Turn Clojure code into MIDI music

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Anansi – a NoWeb-inspired literate programming preprocessor

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Brutal.js – framework for building brutalist web applications

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Online C/C++ obfuscator

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A Build System for Packaging Applications in LXC Containers

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Pesky Adblock, Block Pesky Users Who Aren't Using Adblock

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Upcall – Triggered Human Phone Calls

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TaskBotJS – the best Node.js background job processor on the planet

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Hacker job trends

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Deriving the Y Combinator in JavaScript

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Software to give insurance advice like an agent would

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Prevent email forgery in Gmail using a Blockchain-powered architecture

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Axax – Async iterator extensions for JavaScript

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Snibox – Self-hosted snippets manager

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Gurn – Use words, not bookmarks

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The 100% GraphQL CMS – Relaunched

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Termtosvg – Record terminal sessions as SVG animations

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Tetris with words – I created this small game, please give feedback

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Hottbox – Higher-Order Tensors Toolbox

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I’m going to work part-time on open-source, here is my story

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Ghostwheel – easy spec, side effect detection and tracing for Clojure

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Send your photos as real postcards to anywhere in the world for $1

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Google Drive as a file system

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Smart Fruit – A Python schema-based machine learning library

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A raytracer to shade topographic maps in R, Part 2

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Tiny Shell

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Build dApp front-ends using GraphQL

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The Program – A fictional podcast inspired by Hacker News stories

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DeepSpeech based automated transcription service

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Shotsnapp – Create beautiful device mockup presentation

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Muzoti – Algorithmic Music with Web Audio/Midi and VueJS

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B2blaze – A Backblaze B2 library for Python

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Mimicking the Bloomberg menu widget without JavaScript

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Simple Open Source 3D Online Multiplayer Battle Game Using Node.js

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The Vue.js Handbook – Free 120 pages ebook

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Maskmail – anonymous email address service

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ReactScrollShadow – CSS shadow to indicate scrollable area

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UnityShell, a “shell” for the Unity Editor

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B.lock – a blockchain-powered password manager

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Instagram-scraper: Scrape instagram photos by tags, without API

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Touch-enabled Gesture Helper for your website

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Optical stripe reading and floppy disk imaging attempt

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FireHydrant – A simple incident response tool

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Codeless Testing Framework for REST, GraphQL APIs

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I trained a neural network to write Kanji

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Material Dashboard – Free Admin for Bootstrap 4, React, Angular, Vue.js

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Why Do I Procrastinate (Web MD for Procrastination)

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MRuby-Zest – A Scriptable Audio GUI Framework

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Early version of a Speed Dating Community

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Revert back to good old GitHub Homepage

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Posthook – Job Scheduling as a Service

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Jupyter and Latex – ipynb-tex

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Open Logos – Free logos for open source projects

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Yagol, a Game of Life sandbox built with react.js

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Mentat – group chat with tags and pretty good privacy

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A SIMD-accelerated noise library in Rust

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BudgetDuo – Easily determine your share of household expenses

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URL shortner without Servier side processing, simple HTML-JS-CSS

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Quiver – GraphQL on Steroids

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New markup language for fans of Haml and Markdown

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World Cup API for 2018

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Node-android – Run Node.js on Android

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Bistro Streams – A light-weight column-oriented stream analytics server

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Fo: An experimental language which adds generics on top of Go

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Dilay – a free 3D sculpting application

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T2b – A wicked-powerful text macro language for building binary files

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Plot modern addresses on Earth 240M years ago

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An infinite runner for the command line, because why not

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One Click Pose Estimation

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22 top US newspapers in an RSS OPML list

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ChromeREPL, Interact with Chrome from Sublime Text

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LightXLab – Simple Ray Optics Simulation Project

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I created Devpen.io, Markdown editor with GitHub style, for developers

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Interactive guitar scales diagrams

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Track and Control Your PDFs

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UFSM, a state chart library for embedded applications

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Licence your web apps with one line of HTML code

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Kubernetes operator to automatically deploy and run Tor hidden services

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CircuitVerse – Online Digital Circuit Simulator

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Blasjs – Pure Javascript implementation of BLAS

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Point your repos to their new home

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Grep with colours written in Go

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Python library for learning binarytrees

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LogicEmu – Online Logic Simulator

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Transity – Plain Text Accounting

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Topics.io Automate AdWords, FB ads and more based on weather, CRM, etc.

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HTTP Status as a Service

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BitHubLab, Search for projects on all the major Git platforms

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Podscripter – Automated Transcription for Podcasters

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Domain-tailored CRDTs for document collaboration w/o server involvement

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P2P decentralized messaging application over Bitcoin Cash

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A Hacker News Reader App with Tabs

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Verdaccio – Open-Source Lightweight private NPM proxy registry

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ThreeMap – 3D map visualizations and stuff

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Git-Ready to Deploy? Check for uncommitted and non-pushed changes

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Slack Lunch Club

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An Almost Ideal React Image Component

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Maid – Markdown driven task runner

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JavaScript/WebGL webcam face swap with color correction

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Fast `git status` (git core.fsmonitor in Rust)

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Favicon Kit – get and embed Favicons from any web site (CDN and API)

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Kitten – Tiny multi-server automation tool

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Write every day, measure your progress, achieve your writing goals

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MASV – Send 20GB+ files up to 1 Gbps. Pay-as-you-go and custom branding

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Deno, a secure TypeScript runtime using V8 and Go

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An Example Microservice Back End for Kubernetes, Bazel, Go, Java, GRPC

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Recursive Recipes – directions to make food from scratch

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JQBX – Social Listening Web/Mobile App

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Uber ringpop based distributed and decentralized rate limiter

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Sucrase, 20x faster smaller-scoped alternative to Babel

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SugarTeX – readable LaTeX language extension and transcompiler to LaTeX

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Smooth UI, a React UI Library for Humans

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Cost of a 51% Attack on Popular Cryptocurrencies

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Improved Seam Carving Using Forward Energy

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Trackless - A GDPR-Friendly Google Analytics Opt-In Button

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Experimenting with Clojure 1.9's tools.deps and CLI

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NimForum – A lightweight alternative to Discourse

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Hybrids – UI Library for Web Components with Simple and Functional API

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UserInsights – Get 5 mins of real user feedback on well, anything

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Chromely – Lightweight Alternative to Electron for .NET and .NET Core

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Parabola.io – Automate your work with visual programming

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Wired-elements – UI web components with a hand drawn, sketchy look

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Anon – A Unix Command to Anonymise Data

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Nighthawk: A stealthy, simple, unobtrusive music player

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ByteArray.js – A binary library for JavaScript

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All SF Scooters on One Map

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Cross Entropy – Machine Learning Basics

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1 kB JavaScript framework for building web applications

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Grayscale the Web: A Chrome extension to help avoid mindless browsing

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Gojay – Performant JSON encoder/decoder for Golang

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Pocket Puter

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Francisco.io – my new developer website

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Minimal Fibers

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Vuido builds desktop apps using Vue.js without Electron

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Whiteboardfree – Developer Jobs at Companies That Don't Whiteboard

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A program I made to email log files using Go

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Simple and comprehensive tutorials in Deep Learning using TensorFlow

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Feram finds and fixes bugs in your commits

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Unfortunately.tech – a collection of rejection letters

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HackerForums.co, a forum for the crowd that hangs out on HN

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Screely – Instantly turn screenshots into beautiful images

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A complete Bash parser in JavaScript transpiled from Go

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We created a successful Steam game in HTML5

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CampTarget, road routing and planning helper

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FeaturedFounder.io transparently showcases startups seeking co-founders

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I built and open-sourced a raytracer to shade topographic maps in R

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I built an open source Event management system

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aws_public_ips, a tool to fetch all public IPs tied to an AWS account

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I built a peer to peer publishing platform

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Yet Another HN “Who's Hiring” Browser

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Create-React-app-parcel, a CLI for Creating React Apps with Parcel

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I'm Creating a GitHub Repo Quality Bot

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Strimpack – roll your own livestreaming portal, chat, subs, and forum

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Upcall - Non-AI Sales Assistant

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I turned my Mac's wallpaper rotation into a mini art gallery

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Offline Object Detection and Tracking on a Raspberry Pi

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Bitbox.co – Cloud Storage for Developers

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Jackal 0.2 released (XMPP server in Go)

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Design for Blockchain

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An Atari Breakout Clone in an Observable Notebook

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How to Tune a Guitar

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Trailer Nite – Find something to watch tonight

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Wave-share – serverless, peer-to-peer, local file sharing through sound

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When my builds fail I pay money to charity

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Corral – A Serverless MapReduce Framework

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Stadia Maps, reasonably priced map tiles, static maps, and routing

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Refjar.com – bookmark links and fetch online discussions

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Morning Cup of Coding – A curated newsletter of programming articles

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~200 byte in-browser, no js, private notepad

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LayerJS – A simple UI composition and navigation library

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Interceptor – mock AJAX requests at the browser level

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Alexa skill for Hacker News that summarizes articles

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A Reddit-style search engine that doesn't track you

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Ping.gy – An app to connect with people within 1km from you

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I've spent the last 2 years building a new email client

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Towards ?-calculus

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Vue.js Chat with AWS Lex on PubNub ChatEngine

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Textable, Platform Agnostic polls

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