Web Experience Toolkit is a Government of Canada initiatives that “includes reusable components for building and maintaining innovative websites that are accessible, usable, and interoperable. These reusable components are open source software and free for use by departments and external Web communities.” It is a great example of how a team was able to work in the open to benefit the government as a whole but also the society itself.
https://www.canada.ca/en/treasury-board-secretariat/services/government-communications/web-experience-toolkit.html