Permanently remapping of a key in MacOS

README.md

Key Remapper

This utility remaps the mission control button to F3.

To install this, simply copy the plist file in the ~/Library/LaunchAgents folder. For an explanation of how this works, see the article by nanoant.

If you need to change other keys, the references are:

• https://www.nanoant.com/mac/macos-function-key-remapping-with-hidutil
• https://developer.apple.com/library/archive/technotes/tn2450/_index.html
• https://www.freebsddiary.org/APC/usb_hid_usages.php

com.nanoant.KeyRemapping.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.nanoant.KeyRemapping</string>
    <key>ProgramArguments</key>
    <array>
        <string>/usr/bin/hidutil</string>
        <string>property</string>
        <string>--set</string>
        <string>{"UserKeyMapping":[{"HIDKeyboardModifierMappingSrc": 0xff0100000010,"HIDKeyboardModifierMappingDst": 0x00070000003c}]}</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
</dict>
</plist>