Hey, this is nice and encouraging to see on a city government level. NYC has published an official NYC Digital Playbook as a guide/reference for anybody making digital apps and services for city residents. The playbook highlights 12 goals to strive for when creating digital services. Some of these are obvious, like making services available to all people, testing services before launch, and engaging the public should the need arise.
While the playbook was made specifically with NYC in mind, I think any designer can make use of its suggestions to make better services for any city. Check it out here.