Instead of setting up a project everytime, just fork, and clone it every time you want to start a new project.
Put this line of code in your .zshrc
if you are useing one then source ~/.zshrc
alias phpboil="git clone git@github.com:madeny/phpboilerplate.git $1"
You can change the alias as you wish!
and you can change 'Sith' "Sith\\": "src/"
under autoload on composer.json
then run composer install
if you wish to install phpunit: "^7.1" or just do composer dump-autoload -o
and start coding!