Xah Fly Keys Layout for Ultimate Hacking Keyboard (UHK)

This is my layout of Ultimate Hacking Keyboard V2 optimized for using with Emacs: Xah Fly Keys 📦.

Layout for Xah Fly Keys

Features:

• Home key (on left) for activating command mode.
• Backspace ⌫ on left thumb. (and is not a dual modifier, so that you can hold it to delete) also, Backspace ⌫ made a leader key in emacs init, same as space. (define-key xah-fly-command-map (kbd "<backspace>") xah-fly-leader-key-map)
• Right-hand Space is dual Ctrl, for emacs C-u.
• Physical arrows keys. This makes isearch forward/backward easier.
• Two UHK mod key, one for each hand.

Old Layouts, Not Used

Features:

• Home key (on left) for activating command mode.
• Backspace ⌫ and Space are both leader keys. This allow either hand to invoke leader. But also, when held down, they activates Mod layer for arrows and other navigation via UHK.
• The number keys 1 2 and 7 8 are swapped. This is more efficient. 〔see Efficient Layout for Numbers〕
• physical arrows keys. This makes isearch forward/backward easier.
• Delete ⌦ is a leader key for major mode commands.
• The special button at bottom, are Mod, Fn. So they are available, and can be pressed twice to lock into a mode.
• Ctrl and Alt are not used much with Xah Fly Keys, they are left in their original position. Chording is avoided as much as possible.

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• Ultimate Hacking Keyboard V2