> Exception: Exception when installing config for module example_test, message was: Field 'field_tags' on entity type 'node' references a target entity type 'taxonomy_term' which does not exist.
- Add initial `PostNodeRepository`
- Move logic to Repository
- Inject `EntityTypeManagerInterface`
- Add `PostNodeRepositoryTest`
- Add failing test method
- Failing test: non-existent service
- The "node" entity type does not exist.
- Create posts
- Add assertions based on the `created` date
- Sort nodes before returning them
- Return values to reset array keys