The Riot instance included with modular.im fetches some custom content from configurable URLs:
- the logo
- content for the welcome page (shown before login)
- an image for the welcome page
- content for the home page (shown after login)
These need to be created, and made available. Maybe on Wikimedia Cloud or people.wikimedia.org. (Not sure if there are security implications or the content gets sanitized somehow before displayed in the user's browser. For the purpose of the test we won't have anything sensitive on modular.im anyway.) They need CORS accept headers set so the client running at wikimedia.riot.im can load them.