The objective of this task is to help more newcomers discover their homepage. When it is built, it should be part of the "homepage treatment", meaning that those newcomers that are in the treatment group of the homepage experiment should see this addition, and the newcomers in the control group should not.
According to the EditorJourney research, about 45% of newcomers view the Main Page (e.g. https://cs.wikipedia.org/wiki/Hlavn%C3%AD_strana) on their first day (in Czech and Korean Wikipedias). The content of the Main Page is likely not useful to a newcomer trying to edit for the first time. We could add a card, link, or message to Main Page saying something like "Click here to view your homepage and get started".
For whatever we design here, we will also need to consider if/how there can be a corresponding mobile design.