zmk/docs/docs/behaviors/leader-key.md

title	sidebar_label
Leader Key Behavior	Leader Key

Summary

The leader key behavior when triggered will capture all following key presses and trigger a Leader Sequence if pressed.

Behavior Binding

• Reference: &leader

Example:

&leader

Configuration

timeout-ms

Defines the amount of time to wait to trigger a completed leader sequence. Defaults to 200ms.

To change the timeout term, you can update the existing behavior:

&leader {
    timeout-ms = <500>;
};

/ {
    keymap {
        ...
    };
};

timerless

By default, the leader key will have a timeout, and will not wait for a sequence to be completed or another key to be pressed. Specify timerless if you want a timeout.