Big Omaha has announced two more speakers for this year’s conference: Shane Mac and Shivani Siroya.

Shane Mac is the CEO of Assist, an app that lets you message local experts. He has founded, worked for, and invested in a variety of startups and his book Stop with the BS is an Amazon bestseller. He also performs with Wait What in a live music + DJ mashup show. It’s something like this:

(Editor’s note: We’ve been told by the Big Omaha folks that Shane Mac won’t be performing music at Big Omaha. But you should still come.)

Shivani Siroya is the CEO of InVenture, a company that provides credit services via mobile in developing economies. She is also a TED fellow.

Watch this video about how Siroya is making a difference: