I read a lot . I wanted to do it so I read everything I came across for a year and put together what I thought would work and it did.
Now- to add to this subject. I do like growing in the grow bags and pots. But I am getting old. filling those bags gets tiresome. Now I built a wooden framed tomato greenhouse with 3 grow beds. Sometimes I grow in the pots and sometimes I grow in the beds. When I grow in the pots, I just set my pots on the bed soil.