Having an email with @customdomain.com is important to level up your brand. You can use a paid service such as Google Workspace to achieve that. There is also another alternative solution, a free one, and I’ll talk about it here.
Adam Culp of Beachcasts creates a new Github Personal Access Token, for authenticating, then a new Docker image. And uploads it as a Github Package Registry, for creating Docker containers for use in continuous delivery and continuous integration.
Trying to searching on goolge but you couldnt find any best solution. Read this post for more information