• DataVision, a pure-Java database reporting tool similar to Crystal Reports.
• midilib, a pure-Ruby MIDI library useful for reading and writing standard MIDI file and manipulating MIDI event data.
• Bangkok is a Ruby project that reads chess game descriptions and re-play the games. Notice of events (moves, captures, checks, etc.) are sent to a listener. Bangkok comes with a listener that generates a MIDI file. In other words, the chess game is turned into music. Bangkok uses midilib
• The Montastic Dashboard widget for Mac OS X. Montastic is "the free website monitoring service that doesn't suck."
• Squeak PostgreSQL, a PostgreSQL database interface for Squeak.
• CheckbooX, a Mac OS X application that mimics the register included with your checkbook.
• TwICE, a Java implementation of the Information and Content Exchange (ICE) v1.1 specification. The latest version implements the new ICE v2.0 specification. TwICE is now maintained by Jim Armstrong.
• Rice, a Ruby implementation of the ICE v1.1 specification.
• A Ruby talk given to the New York City CTO Club on July 10, 2001 (HTML and PDF available). (This talk has moved to my Writings page.)
• RuBoids, a Ruby Boids simulation using Qt and OpenGL.

Defunct Projects

• KeyMaster
• MIDI Through
• NQXML, a pure-Ruby XML parser. The project page still exists and the code is still available, but since Ruby now ships with REXML, NQXML has become much less desirable.
• DelimParser.rb, a Ruby class that parses character-delimited data files such as .CSV and tab-delimited text files. It handles different delimiters and quote marks as well as delimiters, escaped characters, and doubled quotes that appear in the data. Since Ruby now ships with the csv module, DelimParser has become moot.