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Build an MCP server in Rust with rmcp: a walk-through 🦀

This tutorial walks through building an MCP server in Rust with rmcp , the official Model Context Protocol Rust SDK. The example is a real one: a devops agent that manages AWS EC2 G5g instances…

  • Tutorial guides building MCP server in Rust using rmcp SDK
  • Server manages AWS EC2 Graviton2 boxes with NVIDIA T4G GPUs
  • Rust server offers lower startup time and smaller supply chain

Null Is Not Zero: Building a JavaScript SEO Audit That Admits Its Limits

We moved a server-side SEO engine into a Chrome extension. Measuring the page was the easy half. Saying what we could not measure was the hard half.

  • The engine returns number | null, where 0 signifies measured zero and null denotes unmeasurable.
  • Browser extension required handling unavailable measurements, unlike server-side approach.
  • PerformanceObserver silently fails, violating Null Is Not Zero rule if not checked first.

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