I am starting with a store bought product but this is possible as a hobby for some people. It’s interesting to try out.
This is a kit from BackToTheRoots.com though there are other companies that offer these kits. This seems to be the best marketed product to be found by beginners.
This particular kit’s requires almost no effort to maintain beyond spritzing with water, it grows to the harvest stage in about 10 days and they are edible. I dried mine and used them in pasta sauce a few days later.