Turnkey Linux is an interesting open source project I happened across fairly recently. They have several different specialized Ubuntu-based Linux distros tuned specifically to run certain scripts. The slim OSes run around 150MB in size, and have just the right packages installed for a trouble-free experience. The specialized installs include
- And many others
The systems are setup to automatically update daily with the latest security patches, with a cronjob checking apt.
A few other specialized features are included, such as a web control panel for easily managing the system.