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Go is an open source programming language that makes it easy to build simple, reliable, and efficient software. One may write a piece of code and cross-compile it for various other systems and architectures.

The following example code creates a webserver for static content using the Go programming language:

package main

import (
  "net/http"
  "fmt"
)

func main() {
  fmt.Printf("Any file from public directory will be served via http://localhost:40000/\n")

  http.Handle("/", http.FileServer(http.Dir("public")))

  if err := http.ListenAndServe(":40000", nil); err != nil {
    panic(err)
  }
}

Create the a directory named public and put a test file in it:

We may run the code with:

go run server.go

And access the test file via http://localhost:40000/incident.png after doing so.

After developing and testing the application, one may build a native binary for the operating system via:

go build

It’s also possible to cross-compile for different platforms (for instance macOS, Windows, Linux):

env GOOS=darwin GOARCH=amd64 go build
env GOOS=windows GOARCH=amd64 go build
env GOOS=linux GOARCH=amd64 go build

The cross-compiling commands above will produce 64-bit executables. If you need to create 32-bit executables (x86) instead, replace amd64 with 386. Or with arm, if you desire to compile for ARM instead.