The "Silverlight Dynamic Languages SDK" Codeplex project has existed since March 2008, with signed binary releases and source code drops every month or so. Though it's a good ship vehicle for the Silverlight+DLR integration, it's not really an open source project -- mainly as it lacks a public source repository. That changes today.
This repository will contain the sources to Microsoft.Scripting.Silverlight.dll and Chiron.exe, as well as Ruby/Python libraries for writing Silverlight applications. Any "feature" work on those pieces of code will be committed to the public repository first, and eventually make its way into MIcrosoft's internal source control so the DLR/Iron* languages don't break it. This repository takes a binary dependency on the Iron* languages as well as the DLR, since this isn't the place to change that code. The source code for IronRuby, IronPython, and the DLR are available elsewhere, but releases on the Codeplex page for this project will still contain source drops of everything.
The repository is hosted on http://github.com, which is a collaborative development site based around git, a "fast, efficient, distributed version control system ideal for the collaborative development of software". You can browse the sources on the website, look at commits, fork your own version of the repository, or just download a snapshot. If you're new to git, just install it (for windows, see here, and here). If you'd like to learn more about Github, or Git, Github guides is a good place to start.
If you'd like to contribute to AgDLR, fork your own version of the repository, commit your changes to your version, and send me a pull request on github. We'll take it from there.
I've already started to work on a new feature which I talked about at Seattle CodeCamp, but that's the next post.