>but this is a pretty decent implementation, in hardware.
minimig mist branch is a decent implementation in hardware.
The A500 mini is an open source emulator (amiberry, designed for the raspberry pi) put in a much cheaper board, enclosed by a nostalgia-inducing box, and sold at a very profitable price. There's nothing good I can say about it.
You can boot it into a 'proper' A1200 and use it just like that, as a pretty decent little Amiga system - one doesn't have to only run the built-in OS/provided games, you know.. you can boot it like an Amiga would, albeit with USB.
With the distinctly relevant advantage that a) it is a small and compact, unassuming device .. and therefore can be duct-taped to the back of the LCD monitor[1] that has, inevitably, a 'spare' video input, and b) one doesn't have to install anything on your other .. potentially work-provided .. computer .. which you occasionally switch back to, when the cubicle alarm goes off ..
I mean, I use my raspberry-Pi for productive things. Having an Amiga handy here and there, has been great. Even the conference room monitor has extra inputs and some spots for duct-taping ..
[1] or underneath the desk, in the cabinet, whatever ..