I spent a small amount of time making some concept art of what a more graphical boot manager could look like for 3DS along with a lock screen after I saw a thread requesting this feature. Maybe concept art like this will compel someone to make this a reality? Theoretically shouldn't be too difficult to build off already existing boot managers (Ctrbootmanager, bootCTR, etc.) Though GUIs are hard as hell. Apparently the touchscreen is not (currently) accessible for arm9. I will see if I can rework my concepts with this in mind. Apparently someone has a theory for getting touch screen to work with this. Would work like screen int does theoretically. Since screen int is arm11 as well. Please note that for the passcode feature it could always be bypassed by replacing the arm9loaderhax.bin file. And the passcode would like be stored in plain text in a config file. So it's secure unless people get to your SD card and actually know what they are doing.