New York City's public screening tool covers 30+ City, State, and Federal programs, regardless of immigration status, and can be completed anonymously in roughly ten minutes. The part worth studying is architectural, not visual: the eligibility rules are decoupled from the front end, both are public, and the same rules are exposed through a Benefits Screening API for outside developers. This is the reference implementation for the interactive self-service approach — try it directly rather than through a re-creation.