Dear Georg,
Thank you for your e-mail.
To clarify, the Docker image I mentioned is a community contribution and not an official release by RIPE. It is maintained solely by me and has no affiliations with RIPE.
Pre-built container images are available on Docker Hub, and they come with provenance attestations enabled[1]. Additionally, the source code is hosted on GitHub, allowing you to build container images manually if you prefer. Everything you need is contained within a simple Dockerfile, and you can use `docker build -t ripe-atlas .` to create your own image.
Best regards,
César
[1]
https://docs.docker.com/build/attestations/slsa-provenance/