Comment by eao197

> Honestly, the source code of the examples looks rather complicated

There are several CAF alternatives with very different usages of C++ features:

* QP/C++: https://www.state-machine.com/qpcpp/

* SObjectizer: https://github.com/Stiffstream/sobjectizer

* actor-zeta: https://github.com/jinncrafters/actor-zeta

* rotor: https://github.com/basiliscos/cpp-rotor

At least two of them (QP/C++ and SObjectizer) are evolved and used for a longer time than CAF.