The planet production takes a day to plan out and setup but once it's going all I have to do is check in & make sure there's enough resources and mining to keep things in production. Once a week I have to do a Jita run to sell those items off.
The manufacturing is a bit more tedious since I have to refine whatever we get from missions for minerals or ask for some minerals from our mining ops. It's also tedious because it requires a lot more calculation to figure out which items are profitable. I'm getting used to producing and then placing sell orders