diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..e658f78
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module ls
+
+go 1.19
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..abe628a
--- /dev/null
+++ b/main.go
@@ -0,0 +1,53 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"runtime"
+)
+
+func main() {
+	Module()
+}
+
+func getDirectory() string {
+	path, err := os.Getwd()
+	if err != nil {
+		fmt.Println(err)
+	}
+	return path
+}
+
+func listDir() {
+	files, err := ioutil.ReadDir(getDirectory())
+	if err != nil {
+		fmt.Println(err)
+	}
+	for _, f := range files {
+		colorRed := "\033[31m"
+		colorReset := "\033[0m"
+
+		fmt.Println(string(colorRed), f.Name())
+		fmt.Println(string(colorReset))
+	}
+}
+
+func Module() {
+	switch os := runtime.GOOS; os {
+	case "darwin":
+		fmt.Println("OS X.")
+		listDir()
+	case "linux":
+		fmt.Println("Linux.")
+		listDir()
+	case "windows":
+		log.Fatal("\nWindows is currently not supported")
+	default:
+		// freebsd, openbsd,
+		// plan9...
+		fmt.Printf("%s.\n", os)
+		listDir()
+	}
+}