XML is a bad idea.
If you ever think "Oh I could use XML for this" then just take a step back, insert a large metal spike into your ear, extract it via the other ear, and then think again.
Just say "no" to XML. It's your civic duty.
I noticed a camera and microphones at the Manchester meetup -- will you be publishing a video? It'd be awesome to be able to point some of my colleagues at the talks.
I have, for months now, been whining about how I can't get the same sorts of efficiency numbers others tout about driving their electric cars. Just drove home from work and averaged 5.2mi/kWh. First time over 5. Temperature makes such a huge difference.
Sometimes it just is :( When I'm still awake as late as you seem to be, I tend to try soothing background music. Grab a sleep playlist off spotify or similar.
@Ellpeck just watched your latest and the comment about the despawn clock made me wonder if you could use an observer instead (though it wouldn't be as pretty unless you hid some sugar cane underground to observe