Building a Vertically Integrated AI Stack: How Load Bearing Empire Eliminated SaaS Dependencies with Supabase, VAPI, and Self-Ho

Load Bearing Empire deployed a unified AI infrastructure across six distinct business units—real estate wholesaling, demolition, valet services, credit repair, mineral rights, and structural SaaS—by replacing proprietary platforms with an open-source backbone. The architecture centers on Supabase (98 tables, 42 Edge Functions), VAPI (26 autonomous agents), Asterisk 18.10 PBX, and a custom JARVIS Brain Router orchestrating inbound workflows across all divisions. By eliminating Twilio, SendGrid, and Make.com integrations, the stack reduced vendor lock-in while enabling real-time data synchronization—a critical requirement for businesses operating at the intersection of hardware (demolition, valet logistics) and digital services (credit repair, SaaS). This article walks through the infrastructure decisions, deployment strategy on Vultr, and the trade-offs between self-hosting and managed services when scaling AI agents across operationally distinct revenue streams.