Hills are amazing at collecting water. You need to build swales on contour with the land (typically I fill my swales with woodchips and they become walking path

Hills are amazing at collecting water. You need to build swales on contour with the land (typically I fill my swales with woodchips and they become walking paths. The dirt and turf that is removed from building the swale goes on the lower side so you end up having double the topsoil in a bed the same length as the swale to grow food in. Additionally because you have a hill, you may capture water in a reservoir (home made rain barrels) and then use common rubber hose (can be broken/found freely) to transport water around the property with just gravity.