alexschreyer.net
On-Demand Ruby / Extension Loader for SketchUp – by [as]
This SketchUp extension was created out of a need for having extensions available in a “locked down” computer lab setting (similar to my solution for AutoCAD). It also provides an easy way to use extensions in SketchUp without having to install them - therefore making SketchUp start (and possibly run) faster. In addition, you can use this tool to run any external ruby code (e.g. for development purposes).