I think they are pretty self sufficient, i.e. you don't feed them or give them water, they go find it themselves.
Obviously they need flowers, either fields, or trees, or gardens etc.
I think most of the interference with them is related to getting the honey and making sure they are OK. If you don't want the honey, then I am not sure what the minimum you can do is.
Aside from the various diseases and other issues bees face, I don't think queens live all that long anyway, so people seem to lose a certain number of hives/colonies on a regular basis.
If the temp is too low they don't fly, so the winter seems to be a bit of a challenge.
I would think there is lots of info online as it has been one of the in-things to do over the last few years, especially in cities.
I have a wasp nest every other year, they require much less effort, i.e. they do it without me doing anything.
