Organised a hackathon
In 2012, as part of 3beards, I helped create, organise and run an "Art meets Tech" Hackathon which then showcased the results at the Whitechapel Gallery for one night only (despite taking 2 days to set up!).

It was a pretty novel idea at the time and we went on to run the event in ever more glamorous locations (the Barbican, then the Tate Modern).

It was a huge amount of work, but thoroughly enjoyable. If you have 5 minutes, here's a video of Digital Sizzle 6 (ArtHack) and an Observer article here too.