https://obue.de/en Personal tech blog by Oliver Bühler — Cloud Architect & AWS Specialist. en-US Fri, 08 May 2026 10:37:50 GMT A well-designed multi-account strategy is the foundation of any scalable AWS environment. In this article I explain how AWS Control Tower and AWS Organizations work together and which design decisions truly matter when building a Landing Zone. Wed, 15 Jan 2025 00:00:00 GMT Oliver Bühler https://obue.de/en/blog/aws-landing-zone-multi-account-strategy https://obue.de/en/blog/aws-landing-zone-multi-account-strategy Local Terraform state is an anti-pattern. Anyone working in a team or using CI/CD needs a remote backend. S3 + DynamoDB is the proven combination on AWS — here is the complete configuration. Fri, 10 Jan 2025 00:00:00 GMT Oliver Bühler https://obue.de/en/blog/terraform-state-management-s3-dynamodb https://obue.de/en/blog/terraform-state-management-s3-dynamodb Before introducing complex FinOps processes, there are a handful of measures that immediately reduce costs in any AWS account. Here are the five quick wins I implement first in every project. Sun, 05 Jan 2025 00:00:00 GMT Oliver Bühler https://obue.de/en/blog/aws-cost-optimization-quick-wins https://obue.de/en/blog/aws-cost-optimization-quick-wins