Cel (Colby) Skeggs: Software Portfolio

Main Projects

Common Chicken Runtime Engine

The CCRE is a powerful robot code framework based on Functional Reactive Programming. It has been continuously developed since 2013. It is open source and available on GitHub.

It is under active development. You can view the documentation and the GitHub project, including the source code.

Un Misterio en Toluca

Un Misterio en Toluca is a modern webapp for instructors to create structured role-playing games, and for students to play them. It is used by Catlin Gabel's Spanish III class.

It is ready for the 2016 spring game. You can read more about the project and view the source code on GitHub.


Scribbles is a Computer Science research project about teaching computers to mimic human-drawn art - specifically, art drawn by humans with computer tools like Photoshop.

It is actively developed as part of a CS Research class. You can read the blog or visit the project on GitHub.

Cosmic Drift

Cosmic Drift is an in-progress deep space station simulation, with simulated atmospherics, power networks, computers, and gravity. It was originally a Top Overall winner at CodeDay.

It is under semi-active development. There is a website and a GitHub project, which include downloads and source code.

Completed Projects

Semantic Automated Compiler Kit

SACK automatically generates compilers from instruction set definitions. It won 1st place in CS at a regional science fair, but could not be presented at the state fair due to a scheduling conflict.

No plans exist to build a polished tool. You can read about the prototype on GitHub or download a PDF of the poster.

Square Assault

Square Assault is a game created in 24 hours as part of CodeDay. It is a strategy game about multiplayer tower defense: towers are the only form of both offense and defense.

It is no longer under development. You can download it or read about it on GitHub, or view its source code.

Side Projects


libca is an in-progress modern reimagining of the traditional libc interface and implementation. It uses libsyscall and is almost completely unit-tested.

Development is on hiatus. You can read about it on GitHub, including the source code.

graphics.py 4.0 rewrite

graphics.py 4.0 is an rewrite of Andrew Merrill's graphics library used in Catlin Gabel introductory CS classes to run on the modern SDLv2 library rather than the unmaintained Pygame backend.

It is under semi-active development. You can view the project and source code on GitHub, but there is no demo right now.


libsyscall provides system calls and program entry (& VDSO discovery) for Linux userspace. It is designed to be the minimal amount of assembly needed for an entire libc implementation.

It is usable, and almost complete. You can view the project and the source code on GitHub.


virtlua is a library for virtualizing computers suitable for embedding in simulations. Based on Kahlua, it was rewritten to allow interruption and resuming. It is used by Cosmic Drift.

It is feature-complete and in use. You can view the project and the source code on GitHub.