https://we.phorge.it/project/query/advanced/ already has Members and Watchers fields which allow querying for projects by inputting usernames as the sole search parameter.

Vice versa, I'd like https://we.phorge.it/people/query/advanced/ to have a Member of field to allow querying for users who are members of certain Projects.

Use case: Given Projects with a more restrictive Join Policy not set to All Users, combine this query with other search parameters like Disabled, Bots, or Has 2FA. (This could also allow to set up a Dashboard panel for the results of such a query and adding that panel to your customized Phorge frontpage to immediately see that there is some cleanup work or policy enforcement to do.)