Maybe there is no big enough market for what Caddy is offering right now. Have you considered pursuing other directions, make it really diverge from nginx, apache features and stand out? Maybe more into an out of the box security solution with integrated scraping protection, ddos protection, vulnerability scanning protection, exploit protection, overload protection, xss/csrf protection, WAF features, full-page caching. Or even into an edge infrastructural solution for hosting companies and such, with dns management and everything.