for what lhc-php-resque is needed?

[comsyspro]

can someone explain what the extension lhc-php-resque is needed for? is it important to have or not? i installed it like it is described here https://github.com/LiveHelperChat/lhc-php-resque.

like in step 6. i executed REDIS_BACKEND=localhost:6379 INTERVAL=5 REDIS_BACKEND_DB=1 VERBOSE=1 COUNT=1 QUEUE='*' /usr/bin/php resque.php and when starting a chat i could see some debug notice in command prompt about new chat but i can't understand why i should do that at all with this extension. can someone please explain the use of this?

in setp 7. there is also Create folder named cron in root Live Helper Chat folder but why should you create this cron folder in lhc root folder? normally i would think that the cronjob are configured with crontab command and there you don't need a cron folder

in step 8. there is an example for a schedule command. why should you need this?

[remdex]

It sends and does webhooks events in the background. https://github.com/LiveHelperChat/lhc-php-resque so UI is not blocked and various other extensions use it.

[comsyspro]

so do you suggest to use it? does it have any positive effect when i install it like in your description and run the shell scripts via crontab in step 7.?

@reboot cd /var/www/web/extension/lhcphpresque/doc/ && ./phpresque.sh >> /dev/null 2>&1
40 7 * * * /bin/touch /var/www/web/extension/lhcphpresque/doc/runresque.lock > /dev/null 2>&1
* * * * * cd /var/www/web/extension/lhcphpresque/doc && ./resque.sh >> /dev/null 2>&1

or do i need to do anything else with lhc-php-resque after crontab is setup?