I have some experience, albeit not recent, with administration of Discourse.
Thanks for expressing your interest, @grahamperrin
Let me see who I can connect you with. And apologies for not responding sooner as I was out for mat leave for the past 3 months.
After talking to a few people, it seems that maintaining Discourse’s infrastructure isn’t something that we can share with external parties at the moment. We really appreciate your offer, though. I’ll make a note to reach out to you if something change in the future and make external contribution possible.
At the moment, you can help us maintain Discourse by flagging inappropriate/spam content so our moderator team can review them.