[x] Create a tracking task for the extension's deployment to Wikimedia wikis. This bug should only concern deployment itself, any sub-issues (that block deployment) should be separate bugs that are listed under "Blocked by" for this tracking bug.
[x] Create Extension: mediawiki.org page for developers and people who will install or configure the extension.
[] Create Help:Extension: mediawiki.org page for end-user documentation. Cross-link it with the above.
[x] Request a project in Phabricator if none exists yet.
[x] Get the extension code in Gerrit.
[] Show community support/desire for the extension to be deployed, if applicable.
[] Request (and respond to) a product review, if applicable
[] Request (and respond to) a design review, if applicable.
[x] Open (and respond to) a security review ticket blocking your tracking task.
[] Config change to default to disable on production wikis, enable on beta
[] Add to WikidataBuildResources, update Build
[] Config change to enable on testwiki
[] Config change to enable on all wikis
https://www.mediawiki.org/wiki/Review_queue#Checklist