Make sure to replace synergy-server with the name of your actual synergy server in the com.symless.synergyc.plist file on line 13
Launchd plist and shell scripts to start and stop synergy client on a Mac OS X.
Shell scripts can be used with ControlPlane to start and stop synergyc on some condition, for example on connecting the laptop to a network on which server is running.
LaunchD script (plist file) should be copied into ~/Library/LaunchAgents.
Load the new launchd agent with launchctl load ~/Library/LaunchAgents/com.symless.synergyc.plist after copying .plist file into LaunchAgents directory.