Ask HN: Should I minor in computer science, or work more on side projects?

It's time to pick classes for next semester, and I'm still not exactly sure what to do. I am going for a double major in Physics and Economics, the Elon Musk route (still not sure if I plan on going the full 4 years), and I have thought about also going for a minor in computer science or maybe something else. If I minored in CS or something, I would want to start down that road now, rather than later. I'm already pretty experienced with programming and computers. I know PHP, Javascript, HTML, and learning Python at the moment. I don't know these extremely well, but I can do anything fairly easily with them if I use Google (by the way, does this count as knowing the language well?)

I always have some sort of side project going, and have tons of ideas floating around in my head that I want to build (not necessarily involving computers). If I minored in CS or something, I would have less time to work on side projects because of increased workload.

Is minoring in CS (or something else you suggest) worth it in this situation? Will I learn anything, and does it mean anything when applying for a job at a startup/other company, especially if I tell them I learned how to program decently on my own?

Thanks!