Hi,
Good luck with you venture!
You basically have two options. Funded vs. bootstrapped mode. Assuming you are not going to look for investment for this particular project, your other option is to bootstrap.
Bootstrapping is becoming more and more popular nowadays, since it lets you gauge the reaction of the market very early. I recommend following Pieter Levels about this on Twitter and other media.
And I suggest watching this is a generally working - good model of how to launch a product: https://www.youtube.com/watch?v=6reLWfFNer0
Best
Ozzie.