1. Just work 40-hour weeks.
2. Part-time consulting, while my wife worked full time.
3. Negotiated less than full-time job (e.g. 28 hours/week, 35/hours week).
This is enabled by being very productive, and of course by negotiation.
I wrote a book about how you can do this too, along with other paths like creating a product business or early retirement: https://codewithoutrules.com/saneworkweek/