Probably having the license AGPL or some certain restriction where you can only attract the big business users on this product.

Let's be honest, you can make money from the small guys but they are little cents as compared to giving corps self hosting guides / licenses like docker..., I know they may not come under pure open source, but the question is tricky, and so is the answer.

So this becomes "fair source" I guess.

I just want the code itself to be readable & buildable from scratch, I want to trust in the process that there are atleast some person who have searched this code and found no malicious use. I want it so that I can modify your program if I really want to, maybe even redistribute that modifications.