I have a number of open source codebases, some newer and better maintained than others. Over time, I've gotten better at writing readme files that explain what a project does and how to run it.
QIF Preprocessor - QIF file preprocessor to decrease duplication when importing to gnucash. This is highly customized to my own use case. QIF files are a format that I can download my bank account transactions in, making it super simple to import my transactions into Gnucash. Unfortunately, Gnucash's automatic categorization is thrown off by the nonsense that is put in the 'description' field, including the date of the transaction and different shops in the same chain spelling their names differently.
Nap Attack - A game about letting the pug sleep. Very much a work in progress, but runs both on desktop and in the web browser using WebAssembly.
RallyX - A clone of the arcade game RallyX. This was a university project I worked on in 2011, and I haven't tried to compile it since.
Rust Git Hooks - A collection of Git hooks written in Rust.
Worthe Signals - Signal processing math implemented in Rust. This was a learning exercise on my side, and the code isn't intended for use in production systems.
Dotfiles - My Linux configuration including my Emacs configuration.
Competitions and Challenges
Advent of Code
The Advent of Code is a programming advent calendar, with a new challenge each day leading up to Christmas. More details are available at http://adventofcode.com/.
The Entelect Challenge is a yearly AI programming competition, where you write a bot to play a game against the other competitors' bots. More details are available at http://challenge.entelect.co.za/