Locking for OwnCloud App Developer

i've created a student-managing-software based on sqlite for Linux in python. So, i used owncloud to synch all the data over different pc's. And here comes the idea: i want to create an owncloud-app do get access online! That would be offering a new functionality and new users cause with this function u can use the data online and offline and editing it online and offline. So, if u are interested please let me know! To check the quick-and-dirty-source-code go here http://ift.tt/1kmeGaP Greetings!