bidict

made by jab, submitted by porterjamesj
Bidict not only provides high-performance, industrial-strength bidirectional mapping data structures for Python, but it includes a shocking amount of computing joy to boot. Take a closer look at bidict to illuminate some of Python's lesser-known and more under-appreciated darkest corners, and discover a few surprises along the way.

systemf

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

Zip 3

made by proxpero, submitted by porterjamesj
An extension of the Swift standard library's `zip` function to three lists.

Line Rider

made by davidlu, submitted by 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

Unicodots

made by BrennanC, submitted by porterjamesj
The asciidots visual programming language, plus emoji!

Ray Tracer written in Kotlin

made by JonathanOliveira, submitted by porterjamesj
A ray tracer written in Kotlin, completely from scratch with no libraries.

Tunable Neural Nets

made by emanuelgeromin, submitted by porterjamesj
An explanation of the recent "Neural ordinary differential equations" paper.

Galaga in Haskell

made by elynnyap, submitted by porterjamesj
The arcade classic, now purely functional!

Joy Divisualizer

made by Eliana, submitted by porterjamesj
The classic "Unknown Pleasures" cover art turned into an audio visualization.

Noor

made by SimplyAhmazing, submitted by porterjamesj
Noor is an Arabic programming language written in JavaScript.