Data export formats, API/query-language openness, and egress pricing checked across AWS, GCP, Azure, OVH, and five EU sovereignty offerings. Part 5 of 6.

Reading guide for a six-part series testing "sovereign cloud" claims against ownership, technology stack, access, enforcement, exit, and switching cost.

Switching cost in practice: skills gaps, familiarity, and a working example of designing for reversibility instead of assuming permanence. Part 6 of 6.

Bleu, S3NS, Google, Microsoft, and AWS: how EU sovereign-cloud ownership claims pair with technology stacks — checked against primary sources. Part 2 of 6.

A Rust CLI that scales or restarts a single Kubernetes Deployment from a CronJob — with cosign-signed images, SPDX SBOM attestation, and SLSA build provenance.

A verified, sourced comparison of regctl, oras, skopeo, Zot, Harbor, and cosign copy for mirroring a Cosign-signed container image into a private registry.