3 Pillars for success when starting a web app, microSaaS, or website business project

I am using my PetStayCay web app project to share my approach to business asset development. In this case, I am creating a sustainable online business. My approach starts with 3 pillars: 1. Audience building - even before the first line or code is written or WP plugin is installed 2. Monetization strategy - ideas on how this project will be funded and sustained as I bootstrap it from zero to ? 3. The Tech - I am always focused on leveraging the WordPress open source platform as my development framework of choice