It takes a lot to get started, but it is all worth it in the end. You can go as basic or over the top as you want. Your chickens need food, water, shelter, help with hygiene, love, and attention.
You need a coop that can give them a place to lay eggs, perch, be safe from predators, warm during the winter, and have space to walk around and exercise.
You can get gravity water and food containers, manually fill buckets, and throw food all over the place, the chickens just need regular access to food and water.