Ideas
Notes on software engineering, AI & automation, eCommerce, and business systems.
Engineering
Row-Level Security Hid Rows From the Job That Deletes Them
Getting a multi-tenant hospital system ready for a real server almost turned the audit log's retention job into a silent delete.
EngineeringShipping Software Updates to Servers You Don't Control
Building a self-update pipeline for self-hosted eCommerce installs on cheap shared hosting, after a broken update taught me the hard way.
EngineeringPreventing Double-Booking in a Real-Time Appointment System
How DocBee guarantees two patients can never book the same doctor's slot, using a database constraint instead of application logic.
EngineeringEnforcing Multi-Tenant Isolation Structurally, Not by Convention
What a real cross-tenant data leak in a school management SaaS taught me about relying on developer discipline for tenant scoping.