diff --git a/clipboard_non_unix.go b/clipboard_non_unix.go
new file mode 100644
index 0000000..dc6e646
--- /dev/null
+++ b/clipboard_non_unix.go
@@ -0,0 +1,7 @@
+// +build darwin windows
+
+package main
+
+var hasPrimary = false
+
+func setPrimary(enabled bool) {}
diff --git a/clipboard_unix.go b/clipboard_unix.go
new file mode 100644
index 0000000..1a00724
--- /dev/null
+++ b/clipboard_unix.go
@@ -0,0 +1,12 @@
+// +build freebsd linux netbsd openbsd solaris dragonfly
+
+package main
+
+import "github.com/atotto/clipboard"
+
+var hasPrimary = true
+
+func setPrimary(enabled bool) {
+	clipboard.Primary = enabled
+
+}
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..39ee6a6
--- /dev/null
+++ b/main.go
@@ -0,0 +1,104 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+
+	"github.com/0xAX/notificator"
+	"github.com/arrufat/papago"
+	"github.com/atotto/clipboard"
+)
+
+func main() {
+	known := flag.String("k", "en", "the language you already know")
+	learn := flag.String("l", "ko", "the language you are learning")
+	list := flag.Bool("list", false, "list all possible language codes")
+	var primary bool
+	if hasPrimary {
+		flag.BoolVar(&primary, "p", false, "use primary selection")
+	}
+	flag.Parse()
+
+	if *list {
+		fmt.Println("Supported language codes:")
+		for _, lang := range papago.SupportedLanguages() {
+			fmt.Printf("%s \t=>   %s\n", lang.Code(), lang)
+		}
+		return
+	}
+
+	// notification setup
+	notify := notificator.New(notificator.Options{
+		DefaultIcon: "icon/default.png",
+		AppName:     "Papago",
+	})
+
+	knownLang, err := papago.ParseLanguageCode(*known)
+	if err != nil {
+		notify.Push("Error", err.Error(), "", notificator.UR_NORMAL)
+		log.Fatal(err)
+	}
+	learnLang, err := papago.ParseLanguageCode(*learn)
+	if err != nil {
+		notify.Push("Error", err.Error(), "", notificator.UR_NORMAL)
+		log.Fatal(err)
+	}
+
+	// set clipboard to use selection
+	if primary {
+		setPrimary(true)
+	}
+
+	// read from the clipboard
+	text, err := clipboard.ReadAll()
+	if err != nil {
+		notify.Push("Error", err.Error(), "", notificator.UR_NORMAL)
+		log.Fatal(err)
+	}
+	if text == "" {
+		notify.Push("Error", "No text selected", "", notificator.UR_NORMAL)
+		return
+	}
+	log.Println("selected text:", text)
+
+	// detect language from selection
+	lang, err := papago.Detect(text)
+	if err != nil {
+		notify.Push("Error", "Unable to detect the language", "", notificator.UR_NORMAL)
+		log.Fatal(err)
+	}
+	log.Println("detected language:", lang)
+
+	// translate
+	var trans string
+	switch lang {
+	case knownLang:
+		trans, err = papago.Translate(text,
+			knownLang,
+			learnLang)
+	default:
+		trans, err = papago.Translate(text,
+			lang,
+			knownLang)
+	}
+	// handle translation errors
+	if err != nil {
+		notify.Push("Error", err.Error(), "", notificator.UR_NORMAL)
+		log.Fatal(err)
+	}
+	log.Println("translation:", trans)
+
+	// copy the translation to the clipboard
+	if primary {
+		setPrimary(false)
+	}
+	if err := clipboard.WriteAll(trans); err != nil {
+		log.Fatal(err)
+	}
+
+	// notify
+	notify.Push(fmt.Sprintf("Translating from %s: %s", lang, text), trans, "", notificator.UR_CRITICAL)
+
+	return
+}