As an organization owner or project board admin, you can make a project board public or private.
By default, your project board is private and only visible to people with read, write, or admin permissions to the project board. A public project board is visible to anyone with the project board's URL.
Tip: When you make your project board public, organization members are given read access by default. You can give specific organization members write or admin permissions by giving project board access to teams they're on or by adding them to the project board as a collaborator. For more information, see "Project board permissions for an organization."
In the top right corner of GitHub, click your profile photo, then click Your profile.
On the left side of your profile page, under "Organizations", click the icon for your organization.
Under your organization name, click Projects.
In the projects list, click the name of the project board.
On the top-right side of the project board, click Menu.
Click , then click Settings.
Under "Visibility", select Public or Private. Then, click Save.