Security
Cryptography Basics Every Developer Should Know
You don't need to implement cryptography - you need to understand it well enough to use the right tool, avoid the wrong one, and not accidentally break your own security.
All posts
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Infrastructure
Linux for Developers Who Aren't Sysadmins
You don't need to be a sysadmin to be effective on Linux - you need to understand processes, file descriptors, permissions, and signals well enough to debug what goes wrong in production.
Observability
Logging That's Actually Useful: Structured Logs and Log Levels
A log that's hard to search is just noise. Structured logging and proper log levels are what separate observability from disk pollution.
Networking
HTTP from the Ground Up: Request, Response, Headers
Every web application runs on HTTP. Here is what is actually in those bytes - and why the details matter.
Computer Science
How a CPU Executes Your Code (The Short Version)
From a line of source code to electrons moving through silicon - the mental model every engineer should have.
Software Architecture
SOLID Principles Through Real Code, Not Definitions
Five principles that show up in every serious codebase - explained through violations you will recognize, not textbook abstractions.
Frontend
How Browsers Render a Page: The Full Pipeline
From HTML bytes to pixels on screen - the rendering pipeline that every frontend engineer should understand.
Programming Languages
How async/await Works Under the Hood
async/await is not magic. It is syntax over Promises, which are syntax over callbacks, which sit on top of a single-threaded event loop.
Engineering Craft
Writing Commit Messages That Mean Something
A commit message is a letter to whoever debugs this code next. Here is how to write one that actually helps.
Backend
Server Architecture Patterns: Monolith, Modular, Service-Oriented
Three architectural styles, their actual tradeoffs, and how to choose between them without falling into the microservices trap.
Mobile
Cross-Platform vs Native: The Real Tradeoffs in 2026
React Native and Flutter have matured. Native development has evolved. Here is an honest look at where each actually wins.
Networking
HTTPS and TLS: What Happens During the Handshake
HTTPS is HTTP with a security layer underneath. Here is exactly what that layer does and how it does it.