install-selenium-9.xml

<?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.seleniumhq.selenium</string>
      <key>UserName</key>
      <string>_selenium</string>
      <key>ProgramArguments</key>
      <array>
          <string>java</string>
          <string>-Dwebdriver.chrome.driver=/usr/local/selenium/drivers/chromedriver</string>
          <string>-jar</string>
          <string>/usr/local/selenium/bin/selenium-server-standalone-3.8.1.jar</string>
      </array>
      <key>Debug</key>
      <false/>
      <key>OnDemand</key>
      <false/>
      <key>KeepAlive</key>
      <true/>
  </dict>
  </plist>