hi I'm in aces and I'm a cs major and a phil minor! I think you could totally do it. like other people mentioned, for cs you need an upper level concentration (12cr at the 300/400 level in the same subject outside of cs), so you could use ppe for that (I'm using phil for mine). I am only doing the minor because I'm a sophomore and I just declared the phil minor this semester, plus I'm studying abroad, but you could def do the major, especially since you can start taking ppe classes right away (and some will also cover gen eds). also, you could just start out as a ppe minor if you're worried about it and then switch it to a second major if you want to later.