Checklist from https://www.mediawiki.org/wiki/Writing_an_extension_for_deployment#Process (read this on-wiki for links and examples):
**Prerequisites:** {T347896}
[x] 1. Add the new extension submodule to the git mediawiki/extensions repo.
[x] 2. Move your extension's CI config to the "Wikimedia production" section, add the "in-wikimedia-production" job template, and make sure it has and passes all the expected jobs for production code.
[x] 3. Add your extension to the json make-wmf-branch release tool at least two weeks prior to your target date for enabling on the Beta Cluster.
[x] 4. Add your extension to extension-list.
[x] 5. Create database schema in beta wikishared
[x] 6. Prepare a patch for each of the following items:
-- [x] Configure the Fluxx client ID and client secret (P53297) in beta's PrivateSettings.php.
-- [x] Configure the Fluxx endpoint URL ([[https://gerrit.wikimedia.org/r/c/operations/mediawiki-config/+/994866 | r994866]])
-- [x] Add private config stubs to the [[https://github.com/wikimedia/operations-mediawiki-config/blob/master/private/readme.php | readme]] ([[https://gerrit.wikimedia.org/r/c/operations/mediawiki-config/+/994867 | r994867]]).
-- [x] Load the extension in CommonSettings-labs.php if `$wmgUseCampaignEvents` is true. ([[https://gerrit.wikimedia.org/r/c/operations/mediawiki-config/+/994179 | r994179]])
[x] 7. Add the patches above to a deployment window.
-- [[https://wikitech.wikimedia.org/w/index.php?title=Deployments&diff=prev&oldid=2144782 | Scheduled ]] for 2024-02-01
[] 8. Add to the `"Extensions used by Wikimedia - Upcoming"` group in translatewiki
[x] 9. Post update on the performance review task (T350947) that the review can now begin
**Then:** {T347909}