bash.sh

sudo chown root /Library/LaunchAgents/gnu.emacs.daemon.plist
sudo launchctl load -w /Library/LaunchAgents/gnu.emacs.daemon.plist

gnu.emacs.daemon.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>gnu.emacs.daemon</string>
    <key>ProgramArguments</key>
    <array>
      <string>/Applications/Emacs.app/Contents/MacOS/Emacs</string>
      <string>--daemon</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>ServiceDescription</key>
    <string>Gnu Emacs Daemon</string>
    <key>UserName</key>
    <string>[YOUR USERNAME HERE]</string>
  </dict>
</plist>