Clipp suggested this

src/infos.rs

@@ -20,8 +20,8 @@ pub enum CommandErrors {
     NoIwad,
 }
 
-impl CommandManager {
-    pub fn new() -> Self {
+impl Default for CommandManager {
+    fn default() -> Self {
         Self {
             launcher: None,
             iwad: None,
@@ -33,6 +33,9 @@ impl CommandManager {
             command_string: "".to_string(),
         }
     }
+}
+
+impl CommandManager {
     pub fn remove_iwad(&mut self) {
         self.iwad = None;
         self.update_command();