Ask HN: Starting a hacker school for underprivileged kids?

Hi HN, Longtime user and poster here. I've been ruminating for a while about starting something up a little outside of my domain: starting an after-school program for underprivileged youth to teach them how to code and build apps, specifically in San Francisco, CA. However, I have no idea where to even begin, who to call, how to build traction, or even if there are programs that already exist that I can lend a helping hand. This is where I would like your thoughtful input.

WHY: Ever since I learned how to program about 4 years ago, I've found programming to be enormously empowering. With little more than a computer and a power supply, anyone, no matter their race, gender, sexual orientation, location, whatever, has the opportunity to build their dreams and make them realities. I strongly believe that in the next 5 years, learning how to program will be just as important as learning English or Spanish or any other second language.

I believe that in teaching these skills early (thinking high school age?), students will be able to use them in their jobs, start their own companies, or perhaps just exercise their creative freedom and distribute their ideas to potentially a limitless audience! Plus, if marketed appropriately, this may entice minorities to enter STEM programs in college.

What resources are there to make sure I'm not re-creating the wheel?

Who can I talk to (email is in my profile)?

What qualifications are needed to pursue such an effort?

Any help will be appreciated!