Caps -> Esc and the weird K380 dual key -> ~`

local.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>local.KeyRemapping</string>
    <key>ProgramArguments</key>
    <array>
        <!--
        Item 1: 0x39 (CapsLock) -> 0x29 (Esc)
        Item 2: 0x64 (+-/weird S) -> `/~
        -->
        <string>/usr/bin/hidutil</string>
        <string>property</string>
        <string>--set</string>
        <string>{"UserKeyMapping":[
          {
            "HIDKeyboardModifierMappingSrc": 0x700000039,
            "HIDKeyboardModifierMappingDst": 0x700000029
          },
          {
            "HIDKeyboardModifierMappingSrc": 0x700000064,
            "HIDKeyboardModifierMappingDst": 0x700000035
         }
        ]}</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
</dict>
</plist>