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In the previous tutorial, you learned how to organize a Go project. Now it is time for Go’s most powerful feature — goroutines. Goroutines are lightweight threads managed by the Go runtime. They are the reason Go is so popular for servers, microservices, and concurrent programs. You can run millions of goroutines on a single machine. What is a Goroutine? A goroutine is a function that runs concurrently with other goroutines. You start one with the go keyword: ...

Everyone writes about AI tools. Nobody shows how they actually use them day to day. Here is my real workflow — which tools I open, when I use each one, what works, what fails, and what it actually costs. No sponsored content. Just what I do. My Daily Setup Three screens. Two AI tools always running. One browser tab. Left screen: Cursor (main code editor) Right screen: Terminal with Claude Code Browser: Claude.ai or ChatGPT for quick questions That is it. No 10 tools. No complex setup. Two AI coding tools and a chat window. ...

In the previous tutorial, you learned about pointers. Now it is time to learn how to organize a Go project properly. Good project structure makes your code easy to read, test, and maintain. Go does not force a specific layout, but the community has developed clear conventions. This tutorial teaches you those conventions. Starting Simple — One Package When your project is small, keep it simple. A single main package is fine: ...

In the previous tutorial, you learned about interfaces and polymorphism. Now it is time to learn about pointers — how Go lets you share and modify data efficiently. If you have used C or C++, you know pointers. Go pointers are simpler. There is no pointer arithmetic. You cannot do math on pointer addresses. This makes Go pointers safe and easy to understand. What is a Pointer? A pointer holds the memory address of a value. Instead of copying the value, you pass its address. This lets functions modify the original value: ...

Anthropic launched the Advisor Strategy on April 9, 2026 — a way to get near-Opus intelligence in your AI agents at a fraction of the cost. The idea is simple. Instead of running Opus on every request, you pair a cheaper model with Opus as an on-demand advisor. The cheap model does all the work. Opus only steps in when needed. How It Works You have two roles: Executor — Sonnet or Haiku. Runs every turn. Calls tools, reads results, makes decisions. Advisor — Opus. Runs on-demand only. Reviews the shared context and sends guidance when the executor is stuck. The executor and advisor share the same context: the system prompt, tool definitions, full conversation history, and all prior tool results. When the executor hits a hard decision, it calls the advisor tool. Opus reviews the full context and sends back a plan or correction. Then the executor continues. ...

In the previous tutorial, you learned about structs, methods, and composition. Now it is time to learn about interfaces — one of Go’s most powerful features. Interfaces in Go are different from most languages. There is no implements keyword. If a type has the right methods, it automatically satisfies the interface. This is called implicit implementation. What is an Interface? An interface defines a set of method signatures. Any type that implements all those methods satisfies the interface: ...

Figma’s canvas engine runs in your browser at desktop speed. Google Earth loads a 3D globe without a plugin. AutoCAD moved from a desktop app to a website. They all use WebAssembly. What is WebAssembly? WebAssembly — Wasm — is a binary format that browsers can run directly. It is not a programming language. It is a compile target. You write code in C++, Rust, Go, or another language. You compile it to a .wasm binary. The browser loads that binary and runs it at near-native speed. ...

In the previous tutorial, you learned about slices and maps. Now it is time to learn how to create your own types with structs. Go does not have classes. Instead, it uses structs and methods. Structs hold data, and methods add behavior. This is simpler than class-based languages like Java or Python. Defining a Struct A struct groups related fields together: package main import "fmt" type User struct { Name string Email string Age int } func main() { // Create a struct with field names user1 := User{ Name: "Alex", Email: "alex@example.com", Age: 25, } fmt.Println(user1) // Access fields with dot notation fmt.Println("Name:", user1.Name) fmt.Println("Email:", user1.Email) // Update a field user1.Age = 26 fmt.Println("New age:", user1.Age) } Output: ...

Every AI agent we have discussed so far needs the cloud. You send a prompt to Claude or GPT, wait for a response, and pay per token. That works for coding and content generation — but what about a sensor on a factory floor? A camera in a farm? A device with no internet? That is where edge AI comes in. Running AI models directly on the device — no cloud, no latency, no API costs. ...

In the previous tutorial, you learned about control flow with if, switch, and for. Now it is time to learn about Go’s most important data structures: arrays, slices, and maps. Slices and maps are the collections you will use every day in Go. Arrays exist too, but you will almost always use slices instead. Arrays An array in Go has a fixed size. You set the size when you declare it, and it cannot change: ...