Arrange-Act-Assert: When the Pattern Serves You and When It Lies to You
Master the Arrange-Act-Assert pattern in testing. Understand its real benefits, origins, and when treating it as dogma makes tests worse.
Development
In-depth guides and technical articles on software development, DevOps practices, cloud architecture, and Linux systems engineering for modern teams.
TSDoc + TypeDoc: Stop Writing Docs That Lie About Your Code
Keep your TypeScript documentation in sync with code using TSDoc and TypeDoc. Learn setup, configuration, CI/CD integration, and common pitfalls.
Type-Safe lodash.get in TypeScript: Deep Object Paths with Full Inference
Learn to make lodash.get fully type-safe in TypeScript with compile-time path validation and exact type inference. Prevent runtime errors.
Writing a Linux Kernel Module From Scratch: Build a Real Character Device Driver
Learn to write a character device driver as a Linux kernel module from scratch. Complete guide with real code, detailed explanations, and hands-on testing.
Stop Running a Separate Vector DB: PostgreSQL + pgvector Is All You Need for RAG
PostgreSQL pgvector handles RAG without separate vector databases. Learn index tuning, production gotchas, when to scale, and why it works.
Zero-Copy Data in Python: Stop Paying the Serialization Tax with Apache Arrow
Learn how Apache Arrow eliminates serialization overhead in Python data pipelines. Avoid costly memory copies between Pandas, DuckDB, and Polars.
Profiling Rust with perf, Flamegraph, and samply: Find the Bottleneck Before It Finds You
Profile Rust code with perf, Flamegraph, and samply. Learn to find performance bottlenecks and optimize your release builds effectively.
sqlx vs Diesel vs SeaORM: Pick the Right Rust Database Crate Before You Regret It
Compare sqlx, Diesel, and SeaORM Rust database crates. Learn their differences, strengths, and when to use each one for your project.
Building the Ultimate Obsidian-to-WordPress Bridge: A Deep Dive
A comprehensive look at how I built a robust Obsidian plugin to publish and update WordPress posts, handling images, videos, and metadata with zero friction.
DuckDB for the Analyst’s Laptop: 10 Things You Can Do That PostgreSQL Cannot
DuckDB is an in-process OLAP engine built for analysts. Query CSVs directly, work without servers, and use schema-flexible SQL faster than PostgreSQL.