On the right sidebar you can find a new widget showing the status of my home server, and thus the availability of old screenshots and files.
Turns out making it was a simple matter of putting an image with the word "Up" on the server, then making a widget with that image and the alt text set to "Down".
Speaking of the server, I'm having loads of fun playing with virtualbox. I've gotten it to run invisibly in the background, and disabled the windowing system on the guest OS (ubuntu 12.04) so that it uses less memory. One of the nice things about linux is that it doesn't bloat over time like other operating systems tend to, and as you can see in the below screenshot it's running just fine on a whopping 64 MB of RAM.