I looked into battleschool. The way it overally works seems better (having it's own command and a simple config with just a dotfile) but I really like ansible roles and I really enjoy using brew and brew cask to install everything, it's more neat and more undoable than using a pkg command directly. For now, I don't know which design I'll choose but I still like using the ansible-playbook command. I don't want to hide the internal mechanics of my tool. Ansible is great ! I still want to use it !