As a dual British and Australian citizen living in Scotland, how they will decide who can continue living here concerns me greatly. I wasn't born here, or even

As a dual British and Australian citizen living in Scotland, how they will decide who can continue living here concerns me greatly. I wasn't born here, or even in the UK, and haven't been here for long. But, I have all the rights to live and work here now, but have no idea if I still will, or if I'll be restricted. Surely it can't be as simple as whether you were born in Scotland or not, but what will be the measure?