lessons-learned
21 posts
A vendor-neutral evaluation of external authorization platforms including AWS Verified Permissions, SpiceDB, OpenFGA, Cerbos, and OPA. Covers architecture patterns, cost analysis, and a decision framework for engineering teams.
A deep technical comparison of Cedar, Rego, OpenFGA DSL, and Cerbos YAML/CEL policy languages. Covers syntax, performance benchmarks, formal verification, tooling, and integration patterns with TypeScript examples for each language.
A deep technical comparison of SpiceDB and Auth0 FGA (OpenFGA) -- two Zanzibar-inspired authorization systems with different trade-offs in schema design, consistency models, deployment, and scalability.
A practical, implementation-focused glossary for developers navigating the AI/LLM landscape. From tokens to agents, RAG to fine-tuning, with code examples and honest assessments.
A pragmatic analysis of AI developer tools in 2025, examining the productivity paradox, trust crisis, and real enterprise adoption patterns based on actual data.
Practical approaches to managing Lambda Layer versions across dev, staging, and production environments with AWS CDK, including automated deployment pipelines and rollback strategies.
A comprehensive guide to Claude Code, AI agents, and Model Context Protocol servers that transforms developers from basic users to power users
How cultural misunderstandings cost software projects billions and destroy team productivity - plus practical frameworks to build truly effective global teams.
A comprehensive security reference with implementation context, lessons learned, and practical guidance from production systems.
Working with authentication systems across various industries has revealed that one-size-fits-all authentication is a myth. Each business domain has unique requirements that dramatically shape your auth architecture choices.
After 2+ years of enterprise GitHub Copilot deployment, here's the honest ROI analysis nobody talks about - productivity gains, hidden costs, and code quality trade-offs.
How systematic database profiling and optimization reduced infrastructure costs significantly. PostgreSQL and MongoDB performance insights and practical patterns.
A guide to implementing AI-assisted code reviews based on real enterprise experience. Learn what AI catches that humans miss, where humans still excel, and how to build effective human-AI collaboration in code review processes.
Real-world lessons from leading Node.js to Go migrations in serverless environments, including performance gains, team challenges, and practical decision frameworks.
Production time management battles, migration strategies from Moment.js to modern alternatives, and UTC handling best practices. How to win the timezone wars.
An honest take on the gap between beautiful RFC designs and messy production reality, featuring real-world lessons from implementing notification systems at scale
Real-world debugging techniques, monitoring strategies, and lessons learned from notification system failures in high-stakes production environments
Production incidents from running Fargate at scale. Memory leaks, ENI limits, subnet failures, and debugging techniques that work.
A practical approach to handling large file uploads using S3 signed URLs instead of Lambda proxies. Complete implementation with CDK, security considerations, and lessons learned from production experience.
Before webpack existed, we concatenated files with Grunt. Before React, we wrestled with jQuery spaghetti. Here's how frontend tooling evolved from manual file management to sophisticated build systems.
When Grunt transformed build automation and Webpack revolutionized how we think about dependencies. The painful transition from manual processes to sophisticated bundling that changed frontend development forever.