> For the complete documentation index, see [llms.txt](https://book.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.bsdcn.org/ask/flat/chapter-21-development-environments/di-21.6-jie-go-kai-fa-huan-jing.md).

# 21.6 Go Development Environment

The Go language was developed by Google and is a programming language with native concurrency support.

This section configures the Go language development environment on FreeBSD, including toolchain installation and version settings.

## Installing Go

Install using pkg:

```sh
# pkg install go
```

Or install using Ports:

```sh
# cd /usr/ports/lang/go/
# make install clean
```

> **Note**
>
> The Go version number `go1.25.10` in this section is the Ports version at the time of writing. Please adjust according to the latest Go version available in FreeBSD Ports, which can be queried with `pkg search go`.

After successful installation, check the installed Go language version information:

```sh
$ go version
go version go1.25.10 freebsd/amd64
```

## A Blessing for a Beautiful World

Create a new text file `helloWorld.go` and add the following content:

```go
package main // Declare the main package; the program entry package must be main

import "fmt" // Import the fmt package for formatted output

func main() { // Main function, program entry
	fmt.Println("Hello, World!") // Print "Hello, World!" to the console
}
```

After saving, run the following command in the terminal to execute the program:

```sh
$ go run helloWorld.go
Hello, World!
```

## JetBrains GoLand IDE

Install JetBrains GoLand IDE using pkg:

```sh
# pkg install jetbrains-goland
```

Or install using Ports:

```sh
# cd /usr/ports/devel/jetbrains-goland/
# make install clean
```

![JetBrains GoLand IDE interface example](/files/XZ3ajcaWxKCP4j2TJiV9)

## References

* Go Project. Effective Go\[EB/OL]. \[2026-04-17]. <https://go.dev/doc/effective_go>. Official Go language best practices document, introducing idiomatic patterns and concurrency models.


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