Project Name: wmde-templates-alpha
Wikitech Usernames of requestors: Awight, Andrew-WMDE, WMDE-Fisch, Thiemo Kreuz (WMDE)
Purpose: Rapid and risky prototyping of changes related to our templates development topic.
Brief description: This will host a basic MediaWiki installation with extensions listed in T257322: Provision test instance for "Templates" projects. We'll occasionally patch MediaWiki core and some of the extensions, and use a small amount of content plus many templates imported from public wikis.
How soon you are hoping this can be fulfilled: Within two weeks would be lovely. This is not a hard blocker for us yet, we're starting early because we recognize that the external dependencies can take some time.