Separating View from Data, Plugins, Modularity

Hi,
How modular is Discourse internally? Will it easily be possible to develop a plugin which uses a different approach to discussion for a certain category?
Does Discourse use the MVVM principle or something similar, so that a discussion tree (or network) can be displayed in a different manner than it is now?

Basic example: Show Discussion as a tree rather than a list (this is not what I want to do)

If not, is it planned to achieve more modularity?

Ce sont des questions très vagues. Pour savoir « à quel point c’est modulaire », parcourons notre répertoire Customization > Plugin et voyez ce que les autres ont fait avec. Ensuite, consultez ces guides pour débutants :

Read the Source, Luke

https://github.com/discourse/discourse

PS: Discourse is an Ember app powered by a Rest API, so yes.