Kitchens – How to fit kitchen cabinets to corners that are not 90 degrees

When installing cabinets, the "go-to" method is to "hang" them on a rail that you install first. The idea is that the rail, being much lighter and less bulky, is easier to put in place, get level, and then screw into the studs. Sometimes it's just one rail, sometimes two; depends on the cabinet system. The rail should be securely screwed into every stud along its length, to provide a solid anchor for the cabinet's weight.

Then, the cabinets will have a complimenting hanger hardware that will allow the cabinet to hang on the rail(s). That's enough to support the weight of the cabinets and what they hold, but you should still secure the cabinets to the rail, and thus to the wall, with screws through the backing and/or the back edge of the cabinet side panels. Again, how this works depends on the cabinet system; most cabinets have a pretty flimsy backing, but pre-drilled holes to put screws into the rails behind. Then, you put some trim around the back to hide any gap caused by the rail hardware, and you're done.

There is no magic; you are fighting thermodynamics.

You may be able to cool individual containers somewhat by wrapping damp cloth around them so evaporation takes away some of the heat. You could arrange some sort of drip or pump to keep those moist, and a fan to improve the evaporation and heat removal... And you'd basically have reinvented the "swamp cooler".

Or you could insulate thoroughly and reinvent the icebox (assuming you have a source for ice). Or insulate and run an air conditioner, reinventing the refrigerator.