Fedora - how to increase browser scroll speed

To increase mouse wheel speed, just install rpm binary package from https://fedora.pkgs.org/28/russian-fedora-free-i386/imwheel-1.0.0-0.1.pre12.fc28.i686.rpm.html . After installing, you will feel that scroll speed increased. Do not forget add it to autostart

Symfony how to bind request data to form without HTML

When you want to bind data to form (for example in your REST application) as in FOSRestBundle, but after handleRequest() you doesn't have submitted data, try to map it with

$this->get('form.factory')->createNamed('', MyFormType::class, $dummy, ['csrf_protection' => false]);

, where first parameter is empty string, the second is form, $dummy is for model or entity object. So you can use form validation in simple Symfony action.