I replace your SaaS sprawl with one self-hosted system you own outright: CRM, invoicing, staff, scheduling, projects, and accounting on open-source Odoo, extended with custom modules built for your industry. Your data lives in one place, your per-seat subscriptions go away, and when the engagement ends you own the stack: infrastructure, code, and data. I run this exact architecture in production across a multi-tenant fleet, including HIPAA-aware residential care operations.