Much has been made in debates about the need to act urgently and the time it would be take to tailor more specific legislative amendments.
If the Bill can be passed in one day, why can't the Parliament adopt a "rolling maul" approach?
Set up a skeletal structure and process. Identify the most pressing laws that need to be relaxed (eg RMA and Building Act). Relax them immediately.
Then as and when specific problems are identified, Parliament can add them through the parliamentary process.
It's not like there is an emergency situation where Parliament cannot meet. Below is the sitting programme for the rest of the year, that shows plenty of regular meetings of Parliament: