However, I have experienced doing social projects purely for meaning during few months between opportunities. The most fulfilling one was setting up a mentoring program in high school, where I went through a set of sessions with a small group of ambitious young students. Not technical mentoring, more like practical general life advice delivered in a workshop manner, as if I was an older friend. They all enjoyed it a lot, and to this day, few years later, we still stay in touch and I'm very happy to see how much they have grown since then.
From my experience being born here, there is a strong pull from society to conform and stay mediocre. I want to change that, and help those ambitious to create their own path.
Unfortunately, working at a startup I don't have time for that currently. But I will definitely get back to something like this once I'm financially independent.
If you would like to discuss more, email is in my profile.
In San Francisco or Seattle, Google "soup kitchen volunteer {city}".
Low commitment, no special skills required. Go try it. Talk to the other people there. Ask where else they volunteer. You can literally google this today and help this week.
Are you following Black Lives Matter? Get involved at the local level. Research your police department and social services funding for your city. Really dig into the details. Find organizing groups there that are working to enact real change through fiscal policies.