That Go has a file embedding feature to directly include files as strings or bytes

Directly importing a configuration file for example, you would simply add a line comment with the prefix go:embed followed by the file name. For example,

// main.go
package main

import (
    "fmt"
    _ "embed"
)

//go:embed env
var env string

func main() {
        fmt.Println(env)
}

where env has the following content

# env
FOO = BAR

would print the content of env without having to add code to open the corresponding file and reading it into a string.

Try it with `go run`:

$ go run main.go
FOO = BAR

:information_sign: This only works for paths in the same directory or in sub-directory as the source file declaring the file embedding. Files in ancestor directories may not be embedded since the patterns do not allow the . or .. path elements.

(pkg.go.dev) embed