The HappiHacking Blog

Where theory meets practice. Our blog shares hard-won insights from building and scaling systems that can't fail.

Recent Highlights

BEAM & Erlang Deep Dives

• "Why I Wrote The BEAM Book": The journey behind the definitive guide
• "30 Years On and In the BEAM": Lessons from three decades of Erlang
• "The Monolith vs Microservices": When to choose what, based on real experience

Fintech & Payments

• "Payment Architecture Patterns": Building compliant payment systems
• "When Fintech Fails": Post-mortems and lessons learned
• "Security for Fintech": Practical security for financial systems

Developer Productivity

• "The AI Duck": Using AI as a rubber duck debugging partner
• "Dev Containers Done Right": Reproducible development environments
• "Team Performance Metrics": What to measure and what to ignore

Technical Deep Dives

• "RabbitMQ at Scale": Lessons from processing billions of messages
• "Erlang for IoT": Building reliable embedded systems
• "Neural Networks in Elixir": ML on the BEAM

What Makes Our Blog Different

• Battle-tested advice from production systems
• No fluff: every post solves real problems
• Code included: working examples you can use
• Post-mortems: learning from our failures

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Updated weekly with new insights from our consulting work and open source contributions.