Auto-start VirtualBox VMs (headless) after reboot on Mac OSX

org.virtualbox.launch.home-assistant.plist

<!-- 
 
First of all get your username and machine name using the following commands
$ whoami
$ VBoxManage list vms

After that, locate (or create) the following file and open it:
$ cat /Users/[your-username]/Library/LaunchAgents/org.virtualbox.launch.[your-machine-name].plist

Once opened, paste the following content:

-->
<?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>org.virtualbox.launch.[your-machine-name]</string>
	<key>ProgramArguments</key>
	<array>
		<string>/Applications/VirtualBox.app/Contents/MacOS/VBoxManage</string>
		<string>startvm</string>
		<string>[your-machine-name]</string>
		<string>--type</string>
		<string>headless</string>
	</array>
	<key>RunAtLoad</key>
	<true/>
</dict>
</plist>

<!--
Save the file and you can test if the script works using the below command:
$ launchctl load /Users/[your-username]/Library/LaunchAgents/org.virtualbox.launch.[your-machine-name].plist
-->