There are 80+ different ways (more like a couple of hundred but I got bored counting) that the Land and Property’s base map is currently tagged as a source; see taginfo. I’ve set up this account up to migrate as many of these as possible to “NSW LPI Base Map” (which was the most common version before I started this). This page explains in more detail.

Questions/suggestions/etc please PM me. As I had to use a disposable email address to sign up I will not get any notifications if you try and message this account.