There used to be a way. The user had to fill a form and pay (less than 100usd, IIRC) and they would set up a custom domain for you. The last time I googled it

There used to be a way. The user had to fill a form and pay (less than 100usd, IIRC) and they would set up a custom domain for you. The last time I googled it they had it discontinued this option.