You can do this automatically with Linux, but with Mac OS X, you still need to do graphical installs it looks like (or until I make a script for it all). Here are the things I need as a list with the goal to get as much open source software running that is inspectable and transparent as discussed by Justin, you can use Thoughtbot
- Firefox. You get all the add-ons when you have Firefox sync running.
- Thunderbird. You need to manually load the add-ons like adblocker, etc.
- VLC. This is a general viewer
- ClamXav, SpiderOak, GPGTools and TrueCrypt. The packages that armor the system for file sharing, mail safety and file safety.
The good news is that only SpiderOak is not open source, so a good thing right now. Now getting it automated is next.