Joy of Computing

An extension of the brainfuck esoteric programming language that adds support for linux syscalls, and an example HTTP server written in it. — porterjamesj

A Chrome extension which enables coders to pair program over the internet and solve LeetCode.com algorithm coding challenges together. Users can type into a shared text editor and video chat in real time, all in the browser. Recursers can login using their Recurse.com account. Source Code: https://github.com/MerkleBros/leetcode-pairing-chrome-extension — Douglas Lerner

An extension of the Swift standard library's `zip` function to three lists. — porterjamesj

A remake of the classic flash game using modern web technologies. You can see the source code for the physics engine here: https://github.com/conundrumer/lr-core — porterjamesj

The asciidots visual programming language, plus emoji! — porterjamesj

A ray tracer written in Kotlin, completely from scratch with no libraries. — porterjamesj

A long form essay that shows the relationship between type systems and logic systems in type theory. — jollysonali

Most stores aren't open 24/7. Amazon.com is. This extension makes Amazon.com more like other stores. The new Amazon.com hours are 10am-9pm M-F and 11am-8pm Sundays. — davidbalbert

Programmatically generated city guides for imaginary cities. Pictures, maps, places of interest, local language, flora and fauna are all included. — davidbalbert

An explanation of the recent "Neural ordinary differential equations" paper. — porterjamesj