Generators in Python let you iterate over large sequences without loading them fully into memory. This article explains how yield works, when to use it, and how it differs from a list or a regular function.
Load balancing is the infrastructure piece that distributes traffic across servers so none of them gets overloaded and a single failure doesn’t take down your application. This article shows real Nginx and HAProxy configurations and explains how to verify everything works.
An SBOM is the exact list of components that make up your software: libraries, versions, and licenses. This article explains how to generate one with Syft, scan it with Grype, and why it became mandatory for software sold to the US government.
Zero-knowledge proofs let you prove you know a secret without revealing it, using verifiable math instead of trust. We cover the Schnorr protocol, zk-SNARKs, and how to generate your first proof with circom and snarkjs.
HTTP/2 replaced HTTP/1.1’s multiple TCP connections with a single connection multiplexed and compressed with HPACK. This guide explains how it works internally, how to configure it in Nginx and Node.js, and when it actually improves a site’s performance.
Content Security Policy is the HTTP header that decides, origin by origin, which scripts and styles your site can load. We build a real policy with nonces, Report-Only mode, and the most common mistakes when enabling it.
Server-Sent Events let a server push data to a browser over an HTTP connection that never closes. It’s simpler than WebSocket, comes with automatic reconnection built in, and it’s the same format used by language model streaming APIs.
WebSocket is the protocol that keeps a connection open between browser and server so both sides can send data at any time. This article explains the handshake, frame structure, and how to implement it step by step with Node.js.
The QUIC protocol runs over UDP and eliminates the slow handshake of separate TCP plus TLS negotiations, letting HTTP/3 open connections in a single round trip or even zero. This guide explains how it works internally, how to test it with curl and nginx, and when it makes sense over HTTP/2.
CORS is the policy that decides whether the browser hands over an API response to a script running on another domain. This guide explains the preflight mechanism, the exact headers you need, and the most common configuration mistakes.
