Docker-in-Docker feature with `moby: true` not working on `trixie`

Docker feature (dind) with moby: true is not supported with trixie:

The 'moby' option is not supported on Debian 'trixie' because 'moby-cli' and related system packages have been removed from that distribution.
0.116 (!) To continue, either set the feature option '"moby": false' or use a different base image (for example: 'debian:bookworm' or 'ubuntu-24.04').
0.116 ERROR: Feature "Docker (Docker-in-Docker)" (ghcr.io/devcontainers/features/docker-in-docker) failed to install! Look at the documentation at https://github.com/devcontainers/features/tree/main/src/docker-in-docker for help troubleshooting this error.

Workaround: use bookworm instead, see here: https://github.com/mathieu-benoit/devcontainers/blob/main/.devcontainer/dhi-docker/Dockerfile#L1.

Related to this https://github.com/devcontainers/features/issues/1494 and this https://github.com/devcontainers/features/issues/1466:

Requesting users to use moby: false when the base image is built on debian trixie.

Start with .devcontainer/dhi-docker/Dockerfile, which the issue identifies as the bookworm workaround, and compare its base image with the failing trixie setup. Reproduce the Docker-in-Docker feature with moby: true, then review the linked upstream issues to determine whether this repository should change its base image or only document the moby: false workaround.