Checklist from https://www.mediawiki.org/wiki/Writing_an_extension_for_deployment#Process (read this on-wiki for links and examples):
Prerequisites: T347894: Deploy the WikimediaCampaignEvents extension to the Beta Cluster
- 1. Performance review (T350947) -- not a blocker
- 2. Create database schema in wikishared (approved in T350906)
- 3. Prepare a patch for each of the following items:
- Configure the Fluxx client ID and client secret in the prod PrivateSettings
- Load the extension in CommonSettings.php if $wmgUseCampaignEvents is true.
- Stop loading the extension in CommonSettings-labs.php (beta inherits prod config).
- 4. Request a dedicated deployment window and deploy the patches above. Scheduled for 2024-02-15 16:00 UTC.
- 5. Add to the "Extensions used by Wikimedia - Advanced" group in translatewiki
- 6. Add {{OnWikimedia}} to Extension:WikimediaCampaignEvents

