I am just learning about Molecule and I feel like this is the worst time to start learning it, because there has just been a new release that embraces their new configuration paradigm called "ansible native mode".
The documentation at https://ansible.readthedocs.io/projects/molecule/ has been (mostly) updated to reflect the new configurations, but the ansible-dev-tools container still contains the previous version of Molecule that is mostly incompatible with the current documentations.
Please create a new release that contains at least Molecule v25.9.0. Since https://github.com/ansible/ansible-dev-tools/blob/main/.config/requirements.in references molecule>=25.3.0, the new version should automatically be included in a new release.