I absolutely agree about fixtures-as-arguments thing. Ward does this a lot better, using default values for the fixture factory. There's a long issue on ideas to implement something like that as a pytest plugin (https://github.com/pytest-dev/pytest/issues/3834), but it seems the resulting plugin relies on something of a hack.
Also chiming in to say thanks for the good work! This looks like an amazing release - I practically jumped in excitement when I saw the fish style autocomplete.
If 10% are located in and around one location and the rest are spread around the world, then that would definitely count as 'heavily concentrated' in my book
Genuine question: Is Julia used for anything other than mathematics yet? Is there any sign of the Julia community expanding beyond science, maths, machine learning etc?