This will be the landing page for the source code. Thinking I might list all the programs in Base here, and link to the source code. We have some code on SF, some on the new GitHub archive. Goal is to make it easy to find the source code. For other programs (not part of Base) I'll probably make a mention that each program tracks its source code on its own, so you should check there. Also include a link to Ibiblio here.