* The `GUI` key is special, because when I double-tap it, it sends `GUI + w`, which pops up an application selector. It also switches to a one-shot layer, where the number row on the left half turns into app selector macros, for the most common things I usually want to switch to. Otherwise it behaves as on a normal layout.
* The `ESC` key also doubles as a one-shot cancel key: if tapped while any of the one-shot modifiers are in-flight (as in, single-tapped, and not expired yet), it cancels all one-shot modifiers. It also cancels the **Hun** layer, if active. Otherwise it sends the usual keycode.
* The **Media** and **Hun** layer keys are one-shot, the **STENO** key is a toggle.
* The `GUI` key is special, because when I double-tap it, it sends `GUI + w`, which pops up an application selector. It also switches to a one-shot layer, where the number row on the left half turns into app selector macros, for the most common things I usually want to switch to. Otherwise it behaves as on a normal layout.
* The `ESC` key also doubles as a one-shot cancel key: if tapped while any of the one-shot modifiers are in-flight (as in, single-tapped, and not expired yet), it cancels all one-shot modifiers. It also cancels the **Hun** layer, if active. Otherwise it sends the usual keycode.
* The **Media** and **Hun** layer keys are one-shot, the **STENO** key is a toggle.