Some comparison and usage befit with similar module

Maybe the task can be generalized to compare multiple deploy modules, i.e. https://www.drupal.org/project/default_content →

In fact, there is quote a bunch of content deploy modules:
https://www.drupal.org/docs/comparison-of-contributed-modules/comparison... →

@mkalkbrenner:

Default Content is designed to deploy default content once, for example when a module or profile gets installed or updated.

Default Content Deploy is designed for continuously "synchronizing" content between multiple systems.

Do these scenarios require different formats?
I think, the event itself is not an issue. It is only about to add Drush command (or event, hook) to execute export/import on another situation.

Maybe there can be done some deeper analysis to compare both these modules, and join forces to work on one of them ;)
Both modules have their own Importer and Exporter classes, I haven't inspecting them further.

default_content_deploy was a add-on for default_content in the beginning. But the use-cases were too different.
I used default_content and it was too limited for my requirements. So I switched to default_content_deploy and started contributing later.
But I have no time to work on a comparison sheet.