Refactor command registration logic

src/main.rs

@@ -11,6 +11,9 @@ async fn on_ready(
 ) -> Result<(), Error> {
   println!("Connected to API as {}", ready.user.name);
 
+  let register_commands = std::env::var("REGISTER_CMDS").unwrap_or_else(|_| String::from("true")).parse::<bool>().unwrap_or(true);
+
+  if register_commands {
     let builder = poise::builtins::create_application_commands(&framework.options().commands);
     let commands = serenity::Command::set_global_application_commands(&ctx.http, |commands| {
       *commands = builder.clone();
@@ -25,6 +28,7 @@ async fn on_ready(
       },
       Err(why) => println!("Error registering commands: {:?}", why)
     }
+  }
 
   Ok(())
 }