Is it a good idea to edit the configuration files?

Hi all!

I'm new in Phalcon and have a good practice question. Is it a good idea to edit the configuration files. For example, service.php, loader.php or etc? I want to make a few changes to the voltshared which is registered in a service.php.

Yes, it's a good idea. You pretty much have to edit those files to build the type of application you want. Go for it.