Cloudflare’s Workers Scheduler, AWS DBs on Vercel, and JIT Admin Access

This week on Ship It Weekly, Brian looks at real platform engineering in the wild.

We start with Cloudflare’s write-up on building an internal maintenance scheduler on Workers. It’s not marketing fluff. It’s “we hit memory limits, changed the model, and stopped pulling giant datasets into the runtime.”

Next up: AWS databases are now available inside the Vercel Marketplace. This is a quiet shift with loud consequences. Devs can click-button real AWS databases from the same place they deploy apps, and platform teams still own the guardrails: account sprawl, billing/tagging, audit trails, region choices, and networking posture.

Third story: TEAM (Temporary Elevated Access Management) for IAM Identity Center. Time-bound elevation with approvals, automatic expiry, and auditing. We cover how this fits alongside break-glass and why auto-expiry is the difference between least-privilege and privilege creep.

Lightning round: GitHub Actions workflow page performance improvements, Lambda Managed Instances (slightly cursed but interesting), a quick atmos tooling blip, and k8sdiagram.fun for explaining k8s to humans.

We close with Marc Brooker’s “What Now? Handling Errors in Large Systems” and the takeaway: error handling isn’t a local code decision, it’s architecture. Crashing vs retrying vs continuing only makes sense when you understand correlation and blast radius.

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Links from this episode

Cloudflare https://blog.cloudflare.com/building-our-maintenance-scheduler-on-workers/ AWS on Vercel https://aws.amazon.com/about-aws/whats-new/2025/12/aws-databases-are-available-on-the-vercel/ https://vercel.com/changelog/aws-databases-now-available-on-the-vercel-marketplace TEAM https://aws-samples.github.io/iam-identity-center-team/ https://github.com/aws-samples/iam-identity-center-team GitHub Actions https://github.blog/changelog/2025-12-22-improved-performance-for-github-actions-workflows-page/ Lambda Managed Instances https://docs.aws.amazon.com/lambda/latest/dg/lambda-managed-instances.html Atmos https://github.com/cloudposse/atmos/issues k8sdiagram.fun https://k8sdiagram.fun/ Marc Brooker https://brooker.co.za/blog/2025/11/20/what-now.html