Effectively, you’re subsistence farming on a tiny plot of land that sometimes requires technical system maintenance. The result in Biosphere 2 was an average workload of eight to ten hours a day, five and a half days a week. This is despite not doing all the chores of a space settlement, including running a power plant, doing construction, manufacturing, and at some point, taking care of children. A long-term space settlement will benefit from quite a bit of division of labor, but that’ll be tricky if everyone has to be a full-time farmer just to not-quite-starve.