FWIW, Redux literally _is_ a pub-sub/observer pattern implementation :) And the Redux core library _is_ extremely small.
But, that led to the community building hundreds of addon libraries for the same sets of use cases, which is what led us to build our official Redux Toolkit package to simplify standard Redux usage patterns.
But, that led to the community building hundreds of addon libraries for the same sets of use cases, which is what led us to build our official Redux Toolkit package to simplify standard Redux usage patterns.