1. Have both domains point to the same IP address.
2. Make sure both domains are working and DNS has fully propagated.
3. Make your old domain a 301 redirect.
4. Do a couple of find and replaces in your codebase and ship it out.
It's literal mafia strategy, because that's what Trump has always done. Large, nebulous contracts where it's hard to demonstrate that the sum paid to X contractor was actually used to pay for materials and labor rather than just pocketed.
That's why everyone connected to the admin is picking up billions of dollars in record time.
Things being done poorly and for a lot of money is the point
Pathetic. They launched like a business, and I guess for the bourgeoisie class, war is a business.