Developed an Android application "Birthdays", which imports contacts from the phone and creates reminders at the required time. In which section is it better to place the application and all the code that may be useful to someone?
Then, as @Alexander Stolte said, in the share your creations section, which is destined not only to "closed" aplication, where the developer doesn't want to share the code, but ALSO AND MAINLY to the ones that are OpenSource from the starting point!