Ha! Small world, I saw that video just the other day.

I have something very similar to this, albeit definitely much cheaper and shittier, which was one of those things billed as a “paratrooper knife” to survivalist types in the backs of magazines in the '90’s. I’ll dig it out later and we can compare; I think Joerg’s version there is significantly slicker.

That’s amazing. Really cool solution and it looks great.