Difference between rulefit & skope-rules Python Packages
In the Skope rules poster: http://2018.ds3-datascience-polytechnique.fr/wp-content/uploads/2018/06/DS3-309.pdf
They made themselves a differentiation

However, our approach mainly differs in the way that decision rules are chosen: semantic deduplication based on variables composing each rule as opposed to L1-based feature selection (RuleFit).

In my personal opinion and after seeing the semantic deduplication package, I will be quite careful as it made some strong modifications of logical rules by default.