Hey @JacquelineGrecco ! 👋
Great work on this PR! The PrivateLink + CMK implementation is solid. I have a few suggestions to better align with our repository philosophy:
🎯 Key Feedback
1. Folder Naming Convention
Our README suggests this pattern:
Current: aws-pl-back-cmk
Consideration: The network type (BYOVPC) isn't clear in the name.
Options:
aws-byovpc-backend-pl-cmk (more explicit)

2. Scenario-Based Architecture
Our repo follows a one folder = one scenario approach. The folder name aws-pl-back-cmk declares this scenario always includes CMK.
Issue: create_new_cmk = false lets users skip CMK entirely, which conflicts with the scenario name.
Suggestion:
Remove create_new_cmk boolean variable
Keep just cmk_arn (optional) for using an existing CMK:
Customers who don't want CMK should use a different scenario folder.

3. Remove Unity Catalog
Unity Catalog belongs in data-governance/ as a separate scenario. Removing it will:
Cut ~35% of code (~350 lines)
Make this scenario focused on "secure workspace setup"
Simplify for customers who just want workspace + PrivateLink + CMK

4. Reduce Modules
README says: "Minimal modularization" and "Avoid complex module abstractions"
Keep: aws-network/ module (VPC conditional logic is genuinely complex)
Flatten into main files:
aws-cmk/ → cmk.tf
aws-iam/ → iam.tf
aws-storage/ → storage.tf
aws-unity-catalog/ → (remove)
Why: These resources don't have complex conditionals. Customers should easily find and customize IAM policies, KMS settings, and S3 configs without navigating modules.

📝 Minor Items

• Remove GITHUB_ACTIONS.md reference in README (file doesn't exist)
• Add stronger warning to IAM policy (it's very permissive with s3:, ec2:, etc.)
• Add brief comments to time_sleep resources explaining why

✅ What's Great
Clean VPC conditional logic
Good validation checks
Both tfvars examples
Proper dependencies and waits
💬 Summary
4 main changes:
Consider folder name alignment with convention
Remove create_new_cmk variable (CMK is always part of this scenario)
Remove Unity Catalog (separate scenario)
Flatten 4 modules → just keep network module
This will make the code ~35% shorter and much easier for customers to customize!
Happy to discuss or pair on this if helpful. Great work! 🚀