I enjoy tackling interesting projects and here are a few that I've made some limited attempt to document. As many of these were carried out purely for fun, code quality and documentation may vary enormously. You have been warned.

A Silhouette Portrait Cutter

Plottie Reverse engineering a Silhouette Portrait plotter/cutter

Plottie is an open source (and cross platform) tool for cutting and plotting SVG graphics using Silhouette plotters and cutters.
A D-Type Latch

Livegate SVG Logic Circuit Simulator

Livegate was an attempt animating one my ridiculous zero-abstraction gate-level drawings of a processor by adding a Javascript to the original SVG. In particular, development of logic circuits is possible entirely from within Inkscape.