Varnish Programming Tutorials & Engineering Articles

To prevent context window bloat and reduce token consumption, Genkit Go introduces Agent Skills based on a progressive disclosure architecture. Developers can package specialized instructions, scripts, and references into modular SKILL.md bundles where only the frontmatter metadata is initially exposed to the agent's system prompt. When a task matches the skill's description, Genkit's middleware dynamically loads the full instruction body and associated assets, ensuring the model accesses precise workflows exactly when needed.

The article discusses the concept of building a Content Delivery Network (CDN) using simple tools and techniques, emphasizing that a functional CDN can be created in a short timeframe, even on basi...

Spotify has streamlined its content delivery network (CDN) services using Fastly's edge cloud platform to enhance the streaming experience for over 230 million users.

The article discusses Pinterest's transition from a Blue-Green deployment model to a Rolling deployment model for their web application.

The article discusses the creation of Cloudflare Workers, a platform that allows developers to run JavaScript code closer to end users, thereby reducing latency.

The article discusses the automated testing processes employed by the Netflix SDK team to ensure high-quality releases of the Netflix application on various devices.

Proxygen is a high-performance C++ HTTP framework developed by Facebook, designed to facilitate the creation of HTTP services with sensible defaults. It supports protocols like HTTP/1.

The article discusses the atomic deploy system implemented at Pinterest to enhance the deployment process and improve user experience.