You can contact us in a variety of ways...
Via email: firstname.lastname@example.org
Via Rocket.Chat: create an account on https://chat.nzoss.nz and you can post there. There are many channels catering to specific interests. If you're not sure, just post in #general (the default channel). Many people will be available to respond to you.
Via Mastodon: after you create an account at https://mastodon.nzoss.nz and reach us by posting there.
If you are having an issue with our online services, you can contact our Webmasters to alert them.
You can also review much NZ open source code (and contact the developers) on our NZ-based Gitlab.