I will not promote - Should we raise and hire or keep bootstrapping and look for another technical cofounder?

My cofounder and I are bootstrapping a SaaS in a niche US healthcare space. This space had two competitors until the big guy bought and discontinued the little guy. Now the big guy has a monopoly and everyone hates their product. (It hasn't changed much since the early 2000s). I'm technical. My cofounder is not. We both realize the incredible opportunity in front of us. We have talked to dozens of high value customers, all begging us to build a better product. I've actually been doing that for about two yea