MacOSX files required to setup an emacs daemon & an alias to launch emacsclient in a tmux session.

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>/usr/local/bin/emacs</string>
      <string>--daemon=emax</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>ServiceDescription</key>
    <string>Gnu Emacs Daemon</string>
    <key>UserName</key>
    <string>${USER_NAME_HERE}</string>
  </dict>
</plist>

load-emacs-daemon.sh

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