Tutorials

Stop dumping everything into one big storage struct. Learn the core storage patterns in ink!—single values, mappings, many-to-many relations, and lazy configs—so your contracts stay readable, cheap to run, and easy to extend.

Use a kitchen‑door analogy to explain env().caller(), only_owner checks, Result‑based errors, and role mappings in ink!, with minimal runnable examples so beginners can copy, run, and ship safer contracts.

Minimal runnable examples to test Rust + ink!: from #[ink::test] off-chain unit tests to a small e2e. Includes setup, full code, typical pitfalls, and fixes.

Beginner‑friendly, production‑oriented ink! walkthrough: emit events for observability, return typed errors instead of panics, and ship with a minimal runnable example plus test assertions.

A panoramic Rust Macros 2.0 guide: unify macro namespaces, master the TokenStream pipeline and macro hygiene, and migrate from macro 1.0 to macro 2.0 metaprogramming with practical examples.

Stop slogging through docs: convert any framework site into a Claude skill pack in minutes. Practical workflow covering CrewAI, AutoGen, LangGraph and more.

How to install and run OpenSpec for this repository and your team: npx (no install), global install, binary/internal distribution, and quick validation steps.

A hands-on, SEO-friendly primer on Spec‑Driven Development with OpenSpec: change proposals, specs, tasks, validation, and release — plus a 10‑minute quickstart and best practices.

The real steps and trade-offs I took to cut a Docker image from 2GB down to 50MB — pitfalls, decisions, and practical takeaways without the fluff.

Build a production-ready async microservice with Rust and Axum: job queue, background workers, exponential backoff retries, and graceful shutdown. Includes full project structure and Docker example.