There’s also the Picopresso which is (I believe) generally regarded to produce a better result - https://www.wacaco.com/products/picopresso

Still hand pumped, looks a bit less like a bike pump though!

I second the picopresso. My buddy has one and, while the tradeoff of the small size is that it's a little more cumbersome, the espresso it can produce rivals that of the Flair and similar, larger machines. I wouldn't consider any other portable espresso machine.

Recently on prime day, the nanopresso and minipresso had great deals, but not the nanopresso, or I would have picked one up for myself.