A region-expansion playbook that runs in four weeks, not four months.

The first regional expansion had been mostly artisanal — every Terraform module touched, every IAM policy duplicated, every DNS record manually added. The team that did it remembered it as a hard four months. Nothing had been written down.

We worked the second expansion as a paired engagement: their senior engineer ran it, we sat alongside writing down every decision and every gotcha. Modules were generalised, conditional regional features documented, Aurora Global cutover scripted, Route 53 geo-DNS policies templated.

The third region was run from the playbook by a different engineer entirely. Four weeks, eleven manual steps (down from 87), three post-launch bugs (down from a typical sixteen). The fourth was even smoother. The team now considers a fifth a low-risk project.