You're looking for a custom ROM for the Nokia N9!
: This ROM brings the KDE Plasma Mobile platform to the Nokia N9. It offers: * A modern, touch-friendly interface * Support for Android apps via the KDE Android runtime * Integration with KDE services, such as KDE Connect nokia n9 custom rom exclusive
Which one of these ROMs catches your eye? Or do you have any specific requirements (e.g., Android app support)? You're looking for a custom ROM for the Nokia N9