How to Build a Product Without Spending a Lot of Money

So i built my first version of my product without spending any money on software. And so now that's what i teach people to do, is te they get money from their customers in advance for a product before it exists and then they get the product free for life. You have guaranteed paying customers. You have virtually no chance of failing, because they're paying for something that doesn't exist yet,. But you know they want it, and they've funded your development. That's alsom. I don't wavt the prospect. They come to me. I've found a deep enough pain. It's not like you'l atually even have to talk them into it.