Multi-Cloud Redundancy: The Gap in Our Resilience Thinking

March 19, 2026 System design

Multi-region is not enough. Recent outages exposed the gap between region and provider redundancy.

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PostgreSQL's GiST Exclusion Constraint: The Database-Level Answer to Double Bookings

March 1, 2026 System design

PostgreSQL's GiST exclusion constraint prevents overlapping hotel bookings at the database layer — making double bookings structurally impossible. One declarative rule that catches what application-le...

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Race Conditions in Hotel Booking Systems: Why Your Technology Choice Matters More Than You Think

February 1, 2026 System design

Race conditions in hotel bookings: PHP needs only DB protection, Node.js/FastAPI need both DB and app-level locks. Use atomic updates by default, pessimistic locking for complex logic.

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Why MCP Is the Missing Piece in AI-Assisted Development

January 27, 2026 Software development

MCP bridges outdated AI training and current library knowledge for confident, accurate code generation.

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Lambda Functions and API Gateway: Are You Ready for Your Next Infrastructure Change?

January 13, 2026 System design

Can your Lambda functions survive a datacenter migration? Are you prepared for a technology change? Here is how the infrastructure needs to be built.

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The Query I Was Running Twice: How Laravel's Context Solved My Validation Dilemma

January 1, 2026 How to

Stop duplicating database queries between validation and controller logic. Laravel's Context facade, combined with withValidator, lets you validate, load, and share models in one elegant flow.

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The Hidden Performance Killer: How One WHERE Clause Fixed Our 5-Second Notification Query

December 3, 2025 System design

Our 5M row notification table caused 4-second queries. Adding WHERE id > cutoff_id improved locality of reference in the clustered index, dropping query time to 250ms. One WHERE clause, 16x faster.

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The Weekend Bug That Taught Me About Laravel's Event System

November 30, 2025 How to

Tests passing locally but failing in CI? Laravel's event auto-discovery uses filesystem ordering, which varies between macOS and Linux. Learn why explicit registration matters for production.

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Beyond pgvector: Choosing the Right Vector Database for Production

November 14, 2025 System design

When Vector Search Becomes Your Production Nightmare: A Deep Dive into Vectors, Indexes, and the Databases That Handle Them

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