Let's suppose you play Glitch daily, and have Remote Herdkeeping. Assuming you could convince people that you are trustworthy, you could set yourself up to maintain piggy herds in peoples houses. Your client would not need RHK, they would only need to buy the associated equipment. The customer would need to give you a key (which implies quite a bit of trust there.) You would agree to visit the house once per RL day, fill the feeder(s) with grain and empty all collectors / milkers for a 15% cut of their output, stack the customers share away from the hungry pigs and keep a logsheet posted near the pen or backyard.
It's not for me, but I'll bet I know more than a few glitch who would sign up for this provided the reputation of the provider could be established somehow.