[timkpaine]

Looks like an OP-1 [1], as do those in [2].

[1] https://teenage.engineering/products/op-1 [2] https://news.ycombinator.com/item?id=39555544

[pimlottc]

Absolutely the first thing I thought of, I had to scroll down to make sure it wasn't actually from them.

[jmgrosen]

Especially the Field model!

[Cockbrand]

Keycap design was probably inspired by 1970s/80s Siemens keyboards, e.g. https://preview.redd.it/6gqyzdshdfp01.jpg?width=1080&crop=sm...