Imaged based systems are considered safer to update as a new image will only be activated via reboot as a whole. Images are rather static though as the OS image is typically delivered by the OS vendor. Package based systems on the other hand are very flexible wrt installed software. However, since packages are typically updated individually at run time, there are non-atomic, intermediate states states that may lead to undefined behavior. This talk presents a hybrid model that behaves similar to an image based system while retaining flexibility of package based systems, building on ideas from SUSE's MicroOS.