This isn't one client project: it's a practice area that spans multiple engagements. The starting point is always the same: find the repetitive work inside a business, then design the smallest system that removes it.
In practice that means customer-facing assistants, research and triage workflows, and automations with human review built in, using tools like n8n for visual automation and Docker for self-hosted deployments where that's cheaper or more private than a subscription service.
The systems below (the invoice agent, the barbershop assistant, the fan app, the salon platform) show the shape of what this looks like applied to real small businesses.