I have raised beds and 1 or 2 containers, nothing is portable. The garden produces quite well. The initial invetsment for the raised beds would be considered substantial by some although I expect them to remain for 10-20 years with no maintenance.
I have the plans and can provide photos, but basically it's 2x8 pressure treated lumber in rectangles that suit my space. The boxes ar 16" high. Irrigation is drip from a well with a filter. I make my own compost and keep bees in the garden along with a couple of small Serama hens that also provide a few eggs for saturdays breakfast in exchange for whatever bugs they can and do eradicate.