LaunchDaemon which runs /usr/local/bin/autopkg-conductor.sh at 2:00 AM every night.

com.github.autopkg-conductor-nightly-run.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>AbandonProcessGroup</key>
	<true/>
	<key>EnvironmentVariables</key>
	<dict>
		<key>PATH</key>
		<string>/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin</string>
	</dict>
	<key>Label</key>
	<string>com.github.autopkg-nightly-run</string>
	<key>ProgramArguments</key>
	<array>
		<string>/usr/local/bin/autopkg-conductor.sh</string>
	</array>
	<key>RunAtLoad</key>
	<false/>
	<key>StartCalendarInterval</key>
	<array>
		<dict>
			<key>Hour</key>
			<integer>2</integer>
			<key>Minute</key>
			<integer>0</integer>
		</dict>
	</array>
	<key>UserName</key>
	<string>autopkg</string>
</dict>
</plist>