Business

Simple token authentication for SPAs and mobile apps.

Slow queries kill apps. Learn to read EXPLAIN and fix the common problems.

Real-time updates without polling. Understand when and how to use WebSockets.

GitFlow, GitHub Flow, trunk-based - which one fits your team?

Handle uploads properly - validation, storage, and serving files securely.

All three manage packages. Here's how they differ and which to choose.

Cache invalidation is hard. These patterns make it manageable.

Regex isn't magic. Learn the patterns that cover 90% of use cases.

Decouple your code with events. Clean, testable, and maintainable.

Thinking in documents instead of tables. A practical transition guide.

Create useful command-line tools that your team will actually use.

When things break at 2 AM, you need a systematic approach.