GCP Shared VPC and why I needed to buy a domain

Why

Most people would probably buy a domain to host a website, but the reason I bought it is to create a Shared VPC (Virtual Private Cloud) in GCP.
Google Cloud has a generous limit for $300 for a free trial, but since I signed up with my personal gmail account, they do not belong to any "Organization".
I needed it for a quick demo

Shared VPC allows an "Organization" to connect resources across multiple GCP projects by sharing the subnets with respective GCP projects.
- Shared VPC (network) needs to be created in its own GCP project (host project).
- However, the resources (eg: Virtual Machines) themselves could be created in a separate GCP projects as long as the subnets are shared.
An Organizantion is the root node for resources in GCP and represents an organization (a company)
An "Organization" is automatically created when a Workspace or Cloud Identity account is created and associated with a domain.
While signing up for workspace, there is a need to get your own domain or purchase one.
Hence, I needed to buy a domain

I was in hurry and went with free trial of workspace and purchased a domain.
In a different article, I would share how to sign up free Cloud Identity when You already have Workspace.
I still retain the domain and there are other benefits too like using custom domain on hashnode :), create custom email address on the domain etc.