It almost feels predestined for this to not solve the problems at hand, overrun on costs and timelines (furthering the first point), in no way streamline existing processes or cut costs, leave behind parts of society, and present security vulnerabilities that can be capitalised on through either social engineering or malware (also furthering the first point, only now citizens will be accused of tax fraud)

I hate to be pessimistic and there are elements of the idea I like, but when reflecting on the issues at hand this feels like popping the toaster because you smell burnt toast, but the rest of the house is on fire