I have built technologies, products, teams, and companies. Most recently I built at-scale technologies and teams at Facebook in Silicon Valley. Prior to that I co-founded Two Big Ears, an AR/VR audio tech company, which was acquired by Facebook.
This is where I write about what I think.
Shipping code and validating assumptions is what matters. People-sized solutions are a misfit for team-sized problems and debt.
Good leadership and delegation is about letting go.
First-time people managers are typically part-time managers with a full-time job. This is a short list of principles that I developed over time and benefited from. It might help you too.