Nope, the map is built atop the Open Australian Legal Corpus, which is the first open database of Australian law (you can read about how I built it here: https://umarbutler.com/how-i-built-the-largest-open-database...). Unfortunately, AustLII is free but not open-source (as in licensed under an open-source licence: https://austlii.edu.au/copyright.html).