made by tmickel, submitted by porterjamesj
Tim's been working on this sheet music editor during his time at RC. It features live playback, multiple instruments, tempo and volume control, repeats, and accidentals. Check it out here:

Rust Playground for macOS

made and submitted by cmyr
Rust Playground for macOS is a simple environment for writing and running small Rust programs.


made and submitted by vaibhavsagar
A Git-compatible content tracker in Haskell!


made and submitted by blinry
An esoteric programming language where programs are defined by the graph of commits in a Git repository.

Zeerust: A Z80 emulator in Rust with a web frontend

made by stillinbeta, submitted by nicholasbs
An emulator for the Z80 processor, with a web-based UI which lets you load programs, step through their instructions, and see the current state of main memory and all registers.


made by jsk, submitted by porterjamesj
A calming interactive visualization of a poem's cadence.

Inferring chart type from autocorrelation and other evils

made and submitted by tophtucker
I wrote a computational essay about using autocorrelation to infer whether to draw a line or bar chart, illustrated how it's calculated, and concluded with historical context. It's a live notebook; click the left margin to view or edit code for any cell.


made by Justin Falcone, submitted by porterjamesj
A JavaScript library for building little languages with tagged template literals.


made by lynnagara, submitted by porterjamesj
An in-browser drawing app, built entirely with Rust and WebAssembly. Try it out at


made by stillinbeta, submitted by porterjamesj
A Game of Life server written in Rust. You can try it out over telnet!: telnet 30434