How do you organize ansible roles?

Hey! I'm curious about how do you organize Ansible roles. I want to share a few roles in the public git repository. What do you think about storing roles in the ~/ansible/roles directory? Do you recommend pushing the entire ~/ansible directory together with playbooks and other stuff in the git repository or execute git init in the directories with role-related stuff like ~/ansible/roles/role1, ~/ansible/roles/role2, etc.? If I decided to go the first way, what's the best method to share a single ansible role?