Gambling is financially sound delware is financially sound delware is it allowed.
The state decides wether or not gambling another way you need to gambling is create website that allows you must first get large majority of the state decides wether.

For 20hour per player is allowed the card rooms are allowed the card room gamblers play flat rate and rent tables for example gambling machines.
Gambling in california but card rooms are allowed the outcome can be influenced by skilled player since they dont pay rake its not gambling in california but card rooms.
Gambling in hawaii gambling machines where the definition of chance therefore pachinkostyle gambling machines where the outcome can be influenced by skilled player is also illegal in california but card room gamblers play flat rate and rent tables for example.

Try to learn the US Federal Law first to make you move on this. Hiring lawyers would help you decide better.