Don&#x27;t forget another one (used by openstack projects):<p><a href="http:&#x2F;&#x2F;docs.openstack.org&#x2F;developer&#x2F;taskflow&#x2F;" rel="nofollow">http:&#x2F;&#x2F;docs.openstack.org&#x2F;developer&#x2F;taskflow&#x2F;</a><p>Comments&#x2F;questions welcome!