https://golang.org/

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

$ brew install go

$ cat helloworld.go 
package main

import (
    "fmt"
)

func main() {
    fmt.Println("Hello World.")
}

$ go build helloworld.go 
$ ./helloworld 
Hello World.

https://github.com/visualfc/liteide - LiteIDE is a simple, open source, cross-platform Go IDE