$ git clone git@github.com:<your github account>/kilex.git
$ cd kilex && composer install
$ git remote add upstream git@github.com:kamilsk/kilex.git

$ git remote add mirror git@bitbucket.org:kamilsk/kilex.git

$ composer require kamilsk/cilex-service-providers:^5.0

$ composer require kamilsk/silex-service-providers:^3.0