How to build a submarine and survive [video]

Submitted ⁨⁨1⁩ ⁨year⁩ ago⁩ by ⁨bot@lemmy.smeargle.fans [bot]⁩ to ⁨hackernews@lemmy.smeargle.fans⁩

https://media.ccc.de/v/37c3-11828-how_to_build_a_submarine_and_survive#l=eng&t=0