What does client-optimized mean?

Question

Can someone explain what does this phrase mean in this sentence?

Dart is a client-optimized programming language for apps on multiple platforms.

Answer 1

The first thing you need to understand is that it is about optimization by the Dart developer (that is, Google). This means that Google does not optimize Dart for use in applications other than client-oriented applications.
For example, in Dart there is no such thing as RDBMS (Relational Database Management System) and Google does not plan to contribute to this kind of development (to optimize the use of this type).
All software like this is very fragmented and not compatible with each other due to the lack of optimization from the developer’s side.