Many thanks to Aleksey Lim who adapted OOo4Kids to the Zero Sugar Distribution system ***.
To explain everything, Aleksey wrote a dedicated page on the OOo4Kids Wiki
What you have to do is just follow the instructions (and report us feedback), and you should be able to install OOo4Kids using this nice system. A lot of locales are possible, and the theorical number is high (around 117), but the localization is currently done for 12 or 13 locales only at the moment.
*** the initial mail