Is this Mahler? This sounds like Mahler

made by sarabee, submitted by Mai
A custom (and beautiful!) display of what's playing now on New York's classical music station. The code is here:


made by scriptnull, submitted by porterjamesj
A simple "webhook server" that runs scripts in response to HTTP requests.


made by suhailpatel, submitted by porterjamesj
A high-performance tool for exporting metrics from Prometheus to Cassandra.

Data-oriented Programming in Python

made by brilee, submitted by nicholasbs
An overview of how the NumPy family of libraries help make Python more performant for scientific computing, without losing the benefits Python brings.

Is Processing Java?

made by brindelle, submitted by rachel
If you're interested in software archaeology or Processing, you'll enjoy Bonnie's exploration of an eternal question: is Processing, in fact, Java? If not Java, what is it?

Drawing Parallel Lines on a Map

made by Patrick Weaver, submitted by Mai
An interactive exploration into a math-y rabbit hole that began when Patrick decided he didn't want his animated trains to look like they were colliding.


made by jamii, submitted by davidbalbert
Jamie was writing a SQL query compiler. Writing a compiler is a great way to get acquainted with all the weird nooks and crannies of a language. He has documented some for our reading pleasure.

Ruby Jard

made by nguyenquangminh0711, submitted by davidbalbert
An interactive debugger for Ruby with a beautiful terminal UI.

Hacking Ethernet out of Fibre Channel cards

made by Benjojo, submitted by nicholasbs
What do you do after you buy three shopping bags worth of Fiber Channel cards on eBay? This is a delightful story of the rabbit hole Ben went down to make the cards useful, including writing a virtual device handler that treats the cards like SCIS scanners!

Sudoku solver and visualization

made by tarokuriyama, submitted by porterjamesj
An interactive Sudoku solver that lets you step forward and backward through a visualization of how it works.