[Question] Are all the dependencies really mandatory?

[juliobguedes]

Is your feature request related to a problem? Please describe.
Currently, it takes a long time to install the package and it also requires the installation of other resources - such as MySQL - which may often not be used. Is it possible to reduce the mandatory dependencies to the core ones, and require other ones as long as the user needs them?

Describe the solution you'd like
For example, NLTK only downloads text corpora when requested by the user. Following these optics, I am a user that will likely never use such a package for knowledge-aware recommenders or building knowledge graphs, but I have a great interest in using it for Collaborative Filtering - and perhaps, in the future, Sequential and Session-based recommendation.

Additional context
Filling this issue while attending Marco Polignano's lecture at RecSys Summer School 2023 :)