Hopefully no one objects to my having gone and made a new Governance category to help out with:
Note that nested categories seem to be a Javascript-only feature.
I moved a couple of categories to the Governance category and renamed them:
Meta renamed to Governance > Discourse Team
Hm. I feel there are governance meta topics «how many non-English topics we create», and there are technical meta topics «how I create a new topic via email with proper category».
Development > Security renamed to Governance > Security Team
I think there is also some content there which doesn’t seem to belong to governance.