[rcmjr]

Business Attorney Here.

I would speak to an attorney to see your next steps both in terms of setting up your business for success as well as making sure there are no issues with your current employment.

[tomwphillips]

Indeed. Check your employment contract and get legal advice. Your employer might not be thrilled to find out about your side project.

[hnfong]

Or worse, they may become thrilled and want a share of the $1M/year revenue since OP developed it while being employed by them.