While I know you should market first and then build, I wanted to show off the concept in the next phase for Lancer.to. I've broken ground on the app. I chose Ruby on Rails as the framework (I use this day-to-day and it's quick to scaffold out an idea).
Once there is enough to show I'm going to build a landing page with email sign up to validate interest. From there I plan to start sharing content and linking back to the landing page to build hype. Over time I'm hoping enough interest grows to validate hashing out the MVP into a full-fledged app.