defaults = { 'apt': { 'repos': { 'yarn': { 'items': [ 'deb https://dl.yarnpkg.com/{os}/ stable main', ], }, 'node': { 'items': [ 'deb https://deb.nodesource.com/node_10.x {os_release} main', 'deb-src https://deb.nodesource.com/node_10.x {os_release} main', ], }, }, 'packages': { 'nodejs': {}, 'yarn': {}, }, }, }