- Separate environments strictly horizontally isolating Dev, Staging, and Prod into totally different GCP Projects
- Use Folders hierarchically in Google Workspace to mirror company departments or product portfolios cleanly
- Leverage Shared VPCs structurally logically within a 'Host Project' allowing multiple 'Service Projects' to piggyback network security policies
- Map GCP Projects strictly to your continuous deployment promotion models—GCP Projects are the sharpest IAM bounding boxes available
- Treat GCP Projects aggressively as ephemeral logic grouping units; do not dump drastically different architectural components inside one monolithic workspace
- Architect robust cross-project networking leveraging VPC Peering uniformly or native Shared VPC attachments mapped via strict IAM roles