Wow, I haven't kept up since kbdfans discontinued the kbd75 (with split spacebar), but I'm glad something like this exists in case my kbd75 board dies. (recently I also found https://system76.com/accessories/launch)

So strange that it includes a Home key but not a End key (and there's space for it)

> macro keys assigned to alt-x, ctrl-g, and ctrl-x ctrl-s for Emacs

Wouldn't it slow you down a lot if you have to reach the far left for these?

I just have Shift, Ctrl, Alt all in the split spacebar cluster and sticky key enabled so I'm very comfortable with any key chords (plus I use leader key).

BTW I know you use VIA, and IIRC it doesn't enable the QMK macro recorder/playback keys. I used that a lot outside of Emacs.

Thanks!