igovt was introduced about 5 years ago and operated by the Dept of Internal Affairs. Now operated as RealMe on behalf of Internal Affairs by NZ Post.
The National Library and Archives NZ are both part of Internal Affairs.
To access the National Library as a Reader one must sign up for an identity card (cheap cardboard). It is possible to initiate the registration process online. However to complete the process one must visit National Library physically and present eg Driver Licence. National Library (remember, part of Internal Affairs) cannot utilize Internal Affairs‘ own RealMe identity verification system to register!
Archives NZ (remember, part of Internal Affairs) is even worse. Same need for a (separate) identity card (plastic). Cannot even initiate the registration process online let alone use RealMe to register.