diff --git a/vvin.go b/vvin.go
index 660dde4..b925103 100644
--- a/vvin.go
+++ b/vvin.go
@@ -1,4 +1,7 @@
-package main
+//go:build windows
+// +build windows
+
+package vvin
 
 import (
 	"errors"
@@ -71,7 +74,7 @@ func (c *globalCmd) Before() error {
 	return nil
 }
 
-func main() {
+func Start(args []string) error {
 	app := gli.NewWith(&globalCmd{})
 	app.Name = "vvin"
 	app.Desc = "Change window properties for Windows"