Remap IT / EU keyboard to US

mac-keyboard-mappings

# Keyboard custom mapping

# backslash to enter
hidutil property --set '{"UserKeyMapping":[{"HIDKeyboardModifierMappingSrc":0x700000031,"HIDKeyboardModifierMappingDst":0x700000028}]}'

# tilde to backslash
hidutil property --set '{"UserKeyMapping":[{"HIDKeyboardModifierMappingSrc":0x700000035,"HIDKeyboardModifierMappingDst":0x700000031}]}'

# EU backslash to tilde
dutil property --set '{"UserKeyMapping":[{"HIDKeyboardModifierMappingSrc":0x700000064,"HIDKeyboardModifierMappingDst":0x700000035}]}'


# To apply changes to an external BT keyboard ProductID is needed
```
hidutil property --matching '{"ProductID":{prod_id}}' --set '{"UserKeyMapping":[
  {"HIDKeyboardModifierMappingSrc":0x700000064,"HIDKeyboardModifierMappingDst":0x700000035},
    {"HIDKeyboardModifierMappingSrc":0x700000035,"HIDKeyboardModifierMappingDst":0x700000031},
    {"HIDKeyboardModifierMappingSrc":0x700000031,"HIDKeyboardModifierMappingDst":0x700000028}
]}'
```

### Full 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.example.setkeyboard</string>
    <key>ProgramArguments</key>
    <array>
      <string>/usr/bin/hidutil</string>
      <string>property</string>
      <string>--matching</string>
      <string>{"ProductID": {prod_id}}</string>
      <string>--set</string>
      <string>{"UserKeyMapping":[
    {"HIDKeyboardModifierMappingSrc":0x700000064,"HIDKeyboardModifierMappingDst":0x700000035},
    {"HIDKeyboardModifierMappingSrc":0x700000035,"HIDKeyboardModifierMappingDst":0x700000031},
    {"HIDKeyboardModifierMappingSrc":0x700000031,"HIDKeyboardModifierMappingDst":0x700000028}
]}</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <false/>
  </dict>
</plist>