I think there's an interesting market here. I know a couple moms who were exceptional FAANG level engineers who were willing to take huge pay cuts to go part time. They wanted to keep working but have enough time for their family.

I'm also aware of someone who made a lot of money in tech and doesn't really need to work but wants to stay in the game. They have told me they'd take a lot less money than they were making for a low salary and some equity if there weren't crazy high expectations for hours worked.

I don't think you could build a team of only part timers, but it really could be a solid way to round out a less experienced team without breaking the bank.