CTO Knowledge Gap, I will not promote

I have worked in the data field for 10 years. As the company’s first CTO, I have expertise in infrastructure, data analytics, BI, data science, data engineering, leadership, and related areas. Data is the core of the business. However, my challenge lies in my limited expertise in software development, which is the topic I’d like to address. What development roadmap should I follow to ensure this gap no longer hinders my effectiveness in my role?