For off-the-shelf solutions, consider the Mistel Barocco, Matias Ergo Pro, Ergodox EZ, Mitosis, and of course keyboardio. I own the Mistel Barocco and keep the

For off-the-shelf solutions, consider the Mistel Barocco, Matias Ergo Pro, Ergodox EZ, Mitosis, and of course keyboardio. I own the Mistel Barocco and keep the two halves of the keyboard like two feet apart; cannot recommend it enough.