The case of was part of the closing ceremony, in a super creative way: @ChaosPost delivered a postcard from Ola to the stage with urgent delivery. <3

I just presented our mechanised cryptographic proof of the VPN protocol at . Thanks for sharing a picture! If you want to read more, our paper has been covered before on Twitter on and, and on Hacker News at

My photo for in on March 15th. I challenge you to . If you take a plane anyway, donate to for example to offset your emissions . We must fund as much as possible. Yesterday I donated to Atmosfair to compensate all flights I did in my life: 6 flights return trip, I donated 94 Euro. Please do the same! is a resource of information for long-distance train journeys to replace flying.

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