Abstract: A method for manufacturing a personalizable portable electronic device having a reprogrammable non-volatile memory for storage of application programs and libraries as well as a corresponding portable electronic device and personalization system. The method includes a step of storing a plurality of compressed application code libraries in the non-volatile memory a step of determining which application code libraries are not required for applications used on the personalizable portable electronic device, a step of deleting from the non-volatile memory any compressed application code libraries determined to not be required for applications used on the personalizable portable electronic device, and a step of decompressing an application code library required by an application used on the personalizable portable electronic device. Other systems and methods are disclosed.