Cool... I want to join, but only can use Wechat hahaha. I guess it might be not enough for you. Why not try to join our meetup this weekend? You can meet people from different countries there and introduce yourself too!
Because this is a community, it's preferable to use 1 language as the main one. People are able to make post with 2 language (mother tongue and translated to english or chinese), but it will cause complication in the future if people just group up based on their own language.