If you don't have experience building software, you're probably feeling lost and overwhelmed.
You don't know what you don't know. So, you're not even sure what to ask. What's important? What's not?
Maybe you have a great idea. Is it even (technically) possible to build it? How long will it take? How much is it going to cost?
Next. Where do you find good developers to build it? How do you assess them? Maybe you've already hired developer. How do you know they're good? How do you know you're not pouring money into a black hole?