If you install Karabiner Elements[1] on macOS, all modifier keys suddenly work across all keyboards.

I'm using one "TKL" Apple USB keyboard per hand when I feel like opening my shoulders a bit. Took me all of two minutes to get used to, at a fraction of the cost for enthusiast keyboards. I wonder if there are any ergonomic advantages I'm missing out on.

(Karabiner Elements is a great tool, anyway; I've been using it for a long time to map Caps Lock to something useful for programming.)

[1] https://karabiner-elements.pqrs.org

Thanks for posting this! I had a split keyboard and typing on it felt so much better if not for the non standard stagger.

I now feel less guilty for having two 60% mechanical keyboards. :)

I think that's the case on Mac OS and Windows, but on Linux you can press Shift/Ctrl on one keyboard, and a letter on another.

Alt doesn't seem to work though.