Three Languages, One Sandbox
How /code-challenges runs JavaScript, Python (Pyodide), and Rust (Playground API) in the browser — three execution backends, one watchdog, one error-marker shape.
2026-04-309 min readAdvanced
Technical Blog
Deep technical insights on software engineering, distributed systems, and modern web development
Developer Humor: Two Universal Truths
Two simple truths every developer knows but never admits in meetings. Short, sweet, and painfully accurate.
Load Testing Socket.IO with Artillery: Real-Time at Scale
Master load testing WebSocket and Socket.IO applications using Artillery. From basic connection testing to complex real-time scenarios with custom metrics.
Sliding Window Rate Limiting with Redis
Building a production-ready sliding window rate limiter that handles 50 million daily requests with sub-millisecond latency.
TypeScript Generics That Will Break Your Brain
Master the most mind-bending TypeScript features: conditional types with infer, mapped type modifiers, and template literal types for building type-safe APIs.