Complex sentence: For Unix/Linux systems and places where the cron triggers need to be executed even if web2py is not running at the moment; also good for CGI/WSGI installs if you have access to the system crontab.
Split into simpler sentences: For Unix/Linux systems and places where the cron triggers need to be executed even if web2py is not running at the moment. Also good for CGI/WSGI installs if you have access to the system crontab.