Tutorials, snippets, & courses for engineers

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Claude Code tutorials, hints & tips

Why Haiku Should Be Your Default Coding Model in Claude Code

Haiku is the best model for coding. There, I said it. But bear with me while I tell you why, and how to get the most out of it.

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Rust

How to deploy an Axum server to Fly.io

Learn how to deploy an Axum web server to Fly.io. Benefit from scale-to-zero deployments, internal wireguard networking, anycast routing to your nearest server, and more.

Rust

String vs str in Rust: Understanding rust's two string types

Rust's two string types might seem like overkill at first, but they're actually a superpower in disguise. Learn why String and &str exist, when to use each, and how mastering this distinction will level up your Rust game.

Rust

Learn the Axum web framework in 5 minutes

Build production-ready Rust APIs with Axum in 5 minutes. Learn routing, JWT auth, state management, and observability with real code examples.

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Apple

macOS Tahoe: When Your Mac Needs Time to Settle

Upgraded to macOS Tahoe and your once-speedy Mac now feels like it's wading through molasses? Before you panic or downgrade, understand what's really happening: your Mac isn't broken, no Genius Bar required.

Apple

iOS 26 Performance Issues: When Your iPhone Needs Time to Simmer

Is iOS 26 feeling slow? Read our guide to help troubleshoot and speed up your new or upgraded iPhone

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TypeScript

Find the Length of an Array in TypeScript

Learn how to efficiently find array lengths in TypeScript, with performance optimizations and edge cases you might not have considered

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Cook up better AI agents for Claude Code

From job descriptions to specialized AI assistants in minutes

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Become a Claude Code power user in minutes

Become a master of Claude Code in minutes, not days or weeks. Optimize your AI workflow to ship faster, at a higher quality.

Production-Ready JWT Validation in Axum: A Real Implementation

Learn how to safely & securely extract and validate a JWT token in your Axum API. Build secure apps with Rust and Axum.

Awesome Claude subagents

Our curated and battle-tested list of Claude Code subagents for increasing productivity, and results.

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Sort an array by date in TypeScript

Learn how to quickly and efficiently sort an array of dates, or array of objects containing a date, in TypeScript.

Calculate distance between pins on a map using TypeScript

Learn how to calculate the distance between pins or markers on a map, such as Google Maps or Mapbox.

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