Plants have grown by themselves for millions of years in soil. They don't need extra nutrients for the first couple of weeks, after that, maybe add a little boost. I have been growing for several years now, and have tried everything. I started with soil, then tried DWC, rockwool, coco, and everything in between. I have
Don't overthink it, plants grow themselves! If you want to grow in soil indoors, just water it lightly when its dry. If it dries too fast, up pot.
Most comercial organic soils are fine, just add perlite.