To contribute you have to send a pull request to enqueue-dev repository. The pull requests to read only subtree split repositories will be closed.
composer install
./bin/pre-commit -i
./bin/dev -b
Once you did it you can work on a feature or bug fix.
To run tests
./bin/dev -t
or for a package only:
./bin/dev -t pkg/enqueue
When you try to commit changes php-cs-fixer is run. It fixes all coding style issues. Don't forget to stage them and commit everything.
Once everything is done open a pull request on official repository.