In T92826#3034521, @bd808 wrote:

Installing Extensions via Composer is not considered to be a best practice by the general MediaWiki developer community. See T467: RfC: Extension management with Composer for slightly more detail. Git clones or tarballs would be the recommended method.

I think this is about the newly released official Discourse app: https://meta.discourse.org/t/beta-testing-the-android-mobile-app/50165/130?u=steko

Re: Multi lingual interface. Discourse has an internationalised interface, admins can choose the default language but users are able to change to their language of choice from the preferences dialog.

Ideally discourse.wmflabs.org should be working with Wikimedia single-signon (SSO) credentials, apart from the specific problem listed here. Detailed instructions are here and I don't think it should be difficult. This way users could sign in with their Wikimedia credentials. What do you think?

No, moderators have quite limited rights, they are more similar to wiki Administrators than sysadmins and have no control over system upgrade and configuration. Furthermore the role of moderator can be restricted to single categories. You can see this thread for a more detailed discussion.