If you simplify things, you don't need someone who has chickens or a lot of chicken know-how, just someone who can follow basic directions. For me that was my neighbor, as she could just cut through her yard into mine and take care of the flock's most basic needs.
All she had to do was open up the coop in the morning, throw down a bowl of feed, collect eggs, close up at night. I already had the waterer topped off and the feeder topped off as well, so the extra feed was just to give the birds a second source of food in the morning.
I now have an auto door so technically no need for anyone to come over, as long as I have enough food and water out to last the duration.