I want a pickup truck that is designed like HN. The slate may be the answer
A minimalist pickup truck could be a bicycle. Depends on whether you really need a truck at all.
This seems like a relatively bad approach in general. An even more minimalist bicycle can just be your legs, depends on whether you really need a bicycle at all. A more minimalist pair of shoes would be sandals, or even more minimalist is just going barefoot and building callouses on your soles. You also don't really need to look stylish, so a more minimalist set of clothing can just be a sheet that you wrap around yourself. I don't find this to be a useful line of thinking.
or perhaps, from a space and utility perpective, a cargo trike? I don't think a bike could handle a desk, even a foldable/collapsed one from ikea, whereas a cargo trike probably could.
And then you're like the meme that popped up recently somewhere on Twitter about some guy using his cargo bike to move bricks. Only took him 12 hours and 4 trips to do something anyone sane would do in 1 hour and 1 trip
I mean you could technically balance a sheet of plywood on your back on a bicycle, but it seems like it would become impractical at any speed above 30mph just due to aerodynamic...uh...lift.
Last time I did this I rested the sheet good on one pedal and rode side-saddle. It worked all right. YMMV--helps to be going downhill...