How do you build Alchemix with a hashing / digital signature algorithm? How about Uniswap? Balancer? Curve? Aave? Don't know these names? Together they hold ov

How do you build Alchemix with a hashing / digital signature algorithm? How about Uniswap? Balancer? Curve? Aave? Don't know these names? Together they hold over $100B in assets. It's crazy how out of touch with what's going on in DeFi HN is. That you can say there is nothing useful meanwhile there are tens of thousands of people using billions of dollars with these apps all of which depend on a Blockchain to function.