how to develop for FW5+ on python?

I'm wondering if it's possible to develop something on the pocketbook firmware 5 and above, on python.

I have seen that brucelee had made a prebuilt python binary, but I still don't get how im supposed to show everything ranging from UI to file handling functions.

Do i need to wrap it with the SDK? or build everything from scratch?

Thanks for any answers beforehand, since, im quite new to programming in general :/