Should I disclose that I'm working on my (very public facing) startup to a potential employer??? (I will not promote)

Probably a mistake, but during interviews I've been claiming that I'm not longer working on my own startup since I was under the assumption that companies probably would not want to hire somebody who is not 100% focused on the role they're hired for. I recently ended up getting an offer, but now I'm in a bit of a dilemma. Because our product is a consumer product, and we are actively advertising right now and will eventually be doing a crowdfunding campaign, there's a good chance that someone will eventuall