Lysquid's QMK keymap

This my firmware config for the Sweep keyboard, a split custom keyboard with 34 keys. It makes extensive use of layers to fit all keys, and uses callum-style mods.

Features

• Custom layout optimized for French and English, Erglace (can be switched with AZERTY)
• A layer for all symbols
• A layer for navigation keys, like the arrow keys
• A tri layer for numbers and function keys
• One shot modifiers, taken from the awesome Callum's keymap
• One shot layer for French accents and useful Unicode characters, inspired by QWERTY Lafayette
• A layer to emulate a mouse
• Compilation for QWERTY or AZERTY depending on a config flag (by default, the computer must be set to AZERTY)

Layers

Special behaviors

Modifiers

• The one shot modifiers are on the NAV and SYM layers. When a mod is tapped, it is queued and will be applied to the next key (for exemple a letter on the base layer).
• Pressing NAV or SYM again cancels any queued modifier.
• To do the same shortcut multiple times, the modifier can be held. It stays active even if the layer changes.
• caps word is a QMK feature that enables caps lock for one word only, useful to write constants.
• Accented letters from the one shot layer can be made uppercase with shift.

Key overrides

Quite a few keys on the left part of the NAV layer have a different behavior when used with a modifier. This is meant to fit useful shortcuts, especially those that are usually done with one hand, while the other is on the mouse. For example:

• alt+undo does alt+tab, and alt+redo does alt+shift+tab
• super+undo goes to the next tab, and super+redo to the previous one.
• shift+vol+ plays the next song, shift+vol- the previous one, and shift+play mutes the sound.
• ctrl+vol+ shuts down the computer, and ctrl+vol- puts it to sleep (unlikely te be pressed by accident because they use the same finger).

You can see the full list in overrides.c.

Navigation lock

• Because it is used very often, the NAV layer can be locked by pressing shift with the thumb when on the layer.
• Alternatively, shift and then NAV does the same (if shift was not used to make a letter uppercase).
• Any layer key unlocks the layer, except for SYM if a modifier is active, to be able to navigate with super+<number> on a window manager.
• Holding shift or pressing caps word also disables the layer.

Mouse layer

• slow mouse button make the cursor speed slower for more precision.
• onesht buttons stand for 'one shot click'. The mouse layer is disabled after the button is clicked, unlike the other buttons.
• A tap on NAV, SYM or shift exits the mouse layer.
• erglce stands for Erglace, my keyboard layout. It can be switched with AZERTY (including the one shot special characters layer, see the keymap definition).

Installation

• Install the QMK CLI (available on Arch repos as qmk)
• Download the latest release
• Run qmk flash ferris_sweep_lysquid.hex
• Put your keyboard in bootloader mode (with a boot key or a reset button)
• If you are flashing your keyboard for the first time, you must flash the two sides separately with the flags -bl avrdude-split-left and -bl avrdude-split-right