"Yes, it's more complicated than server development in that it is a real-time, multi-point input, multi-output (rendered elements on screen) environment with sy

"Yes, it's more complicated than server development in that it is a real-time, multi-point input, multi-output (rendered elements on screen) environment with synchronisation and concurrency needs." I would argue that most backends typically also deal with more than 1 user at the same time (and in real time).