Building a Vertically Integrated AI Stack on Open Infrastructure: Load Bearing Empire's Architecture Decisions

When Domonique Luchin scaled Load Bearing Empire across six businesses—from real estate wholesaling to structural SaaS—he chose an unconventional foundation: Supabase for data, Asterisk PBX for telecom, VAPI for voice AI, and self-hosted infrastructure rather than AWS lock-in. This wasn't a startup playbook; it was systems thinking applied to infrastructure. In this article, we'll break down the architectural principles that enable a single engineer to operate capital-intensive businesses (demolition, valet services, credit repair) alongside SaaS products, how open-source telephony integrates with modern AI APIs, and why structural thinking about dependencies, scalability, and cost matters more than following conventional tech stacks. Whether you're building a services business that needs automation or a SaaS product layered on top of operations, the decisions made during Load Bearing Empire's foundation phase reveal practical patterns for sustainable, owner-controlled infrastructure.