Ask HN: Transitioning from developer to team lead

I'm curious to hear from those that have transitioned from developer to team leader or a developer role responsible for other developers and their output.

I'm an accomplished developer who has been working in SV for a long time and now due to my experience i have been asked to lead a team. I have decided to accept.

What do you wish someone had told when transitioning to a team lead role, or what advice do you have. What works for you?