Hi, I just wanted to point out that SIX Maps still include some non CC BY terms https://maps.six.nsw.gov.au/js/sixmaps/app/coreTerms.html which we'd prefer to err on the side of caution and not use directly.
The data via https://www.spatial.nsw.gov.au/products_and_services/web_services and the Spatial Collaboration Portal for example https://portal.spatial.nsw.gov.au/portal/home/item.html?id=01de8834e88a45a1a673b120aa00c82e is explicitly covered by CC BY 4.0 and the OSMF CC BY waiver we have, so a safer choice. I realise it's likely the same data so in this case it's okay. 