We are in the process of migrating to Bamboo to build and deploy our AEM projects, currently our repos exist on Bitbucket. We have Nexus repo setup at our enterprise level and the same has been configured in settings.xml (example: mavenrepo.company.com/nexus/content/groups/public) I have also defined an additional repo in my settings.xml as repo.adobe.com/nexus/content/groups/public.