Still, i'd suggest to familiarize yourself with the underlying process of how startups/products are built. For eg. here's the Lean process: http://theleanstartup.com/principles
Find out where you can contribute and collaborate on the process or better if you have managerial skills go execute the process.
For a tech product there is more to writing code. It's like if you have a blueprint of house engineers will build the house for you.
Learn to draft, pitch and execute that blueprint for your tech interest.