Thanks for your reply! I just tried it again, beelined for the farm, and got a kitchen as soon as possible. I filled the whole radius with beet plots, and put 3 workers in there. 2, and later 3 in the kitchen. And I also harvested several berries nearby.
But still my people were starving and died, see the screenshot below.
Regarding the farm: yes, for me it was quite natural to use the plots in the farm. So it works! But I guess it is mostly interesting if you reach the point where you should use different plots for different resources? Otherwise it makes sense to immediately fill the whole radius with beet plots. Definitely interesting to have temperature and weather influence the crop growth. Might be good then to do give information on what weather/temperature will come up later on, and how that might affect the crop growth, so you can take that into account. Maybe even add mechanics to plant crops in different ways (not sure how, but somehow optimizing for specific weather types, or even helping to steer the Onbu to more optimal crop growth).
Also: once you start to lose people to starving, it is quite hard to get back from that right? I think the only way is to scavenge for new people?