Background

This task identifies where the development environment will live. Done up front, before variant implementation begins.

Requirements

Technical

• Scaffold badge module under the agreed extension or skin directory.
• Configure Jest/(Vitest?) for unit tests; confirm integration with existing CI pipeline.
• Confirm mobile browser targets/JS/No-JS requirements with the team before implementation starts.

Documentation

• Local development setup documented so other engineers can onboard without help.
• Document module purpose, local setup steps, how to toggle variants locally, and how to run tests (README, … tbd).

Setup for TestKitchen experiment

mw.user.clientPrefs.set( 'minerva-badge', '1' )
mw.testKitchen.overrideExperimentGroup( 'donor-delight-badge', 'treatment' );
mw.testKitchen.overrideExperimentGroup( 'donor-delight-badge', 'control' );

Acceptance Criteria for done

• Badge experiment location clarified. ==> WikimediaCustomizations
• Linting and test runner pass in CI on empty code location.
• Local setup documented and verified by a second engineer.