DRAFT - sorry... ran out of time. This is not complete.
I often say "do one thing well". This is not my own, but rather an principle I got taught about unix commands. I have designed with this in mind for my whole career.
"Make things as simple as possible, but not simpler", Albert Einstein.
Simplification is often confused with minimalism.
My desktop computer is in components. I really don't get the all in one computer. My monitor has easily out lasted 3 desktop computers. I have even added to my monitors, now 2 large monitors on one - even considered 3. Keyboard, mouse - have had my favourites.
My house is powered by solar. But not grid interactive. Fully stand alone. Individually components you need are: Panels, Batteries, Regulator (and probably some more shunts), Inverter, Fuses, Continuous power point tracker, and possibly a few other items.
It is very popular to build components together. You can buy a single unit that does for the regulator, inverter, power point tracker, and even built in fuses. What if it breaks?
I have a large fridge, and a deep freezer. I need the extra space (and have the extra room) for storage as part of our process to keep larger quantities of food for longer.
There is a problem with some of my ideas above. It can cost a little more. Combining my power components often costs a little less than buying all the individual components.