squash some bugs

src/main.rs

@@ -15,7 +15,10 @@ struct Video {
 #[post("/new", data = "<video>")]
 fn new(video: Form<Video>) -> Redirect {
     if video.link.starts_with("https://"){
-        Command::new("/bin/env").args(&["bash", "-c", &format!("mpv {link}", link=&video.link).to_string()]).output().expect("Failed to execute command");
+        Command::new("/bin/env")
+            .args(&["DISPLAY:=0", "bash", "-c", &format!("mpv {link}", link=&video.link).to_string()])
+            .output()
+            .expect("Failed to execute command");
     }
     Redirect::to("/")
 }