Running bash commands with git alias

made by gnclmorais, submitted by nicholasbs
A quick tip for adding some very useful Git aliases!

react html5 zoom/pan canvas

made by robinovitch61, submitted by porterjamesj
A quick template for making pannable/zoomable Canvas-based apps with React.

Treemap Generator

made by tarokuriyama, submitted by porterjamesj
A random treemap generator with adjustable parameters written in Elm. You can see the code here: and a writeup here:

Programming in Z3 by learning to think like a compiler

made by bellmar, submitted by Mai
A nice intro to Z3 and SMT solvers in general.

Star Battle Puzzle Party

made by rachelehrlich, petermalmgren, mayajosyula, leanalee, Jake Donham, must-compute, DanMurphy, ckini, Jessyjones, Aaryan Porwal, submitted by Jake Donham
Multi-player Star Battle puzzle made by multiple players! Uses React, SVG, and

Introducing the Moon Clock

made by niftynei, submitted by Mai
The moon clock is a physical timepiece that displays what the moon looks like for your current location. It uses an LED matrix, a RaspberryPi, and a whole bunch of computational astronomy!

Is It Finished?

made by Danny Manesh, submitted by porterjamesj
A game where you have to push enter as close to the end of the animation as possible. Endearingly frustrating. See the code here:!/are-we-done-yet?path=script.js%3A1%3A0

The case of the curiously slow shader

made by Raph, submitted by davidbalbert
Raph investigates an issue with a slow shader, which ends up being caused by the shader compiler being overly conservative about cache coherency.


made by Justin Reppert, submitted by porterjamesj
A tool for finding royalty free musing by "sonic similarity" using Tensorflow.js. The results are surprisingly close, try it with a song you like!

Effective Use of Array#bsearch

made by jemmaissroff, submitted by nicholasbs
An explanation of what Ruby's built-in binary search method assumes about the arrays you call it on so you can use it effectively.