What Reactor is

A plugin runtime in two languages that implement the same architecture, so that a host which lists, describes, groups or draws plugins never has to ask which side of the wire a plugin came from.

Three pages, and they are worth reading in order: what this targets that a callback does not, the constructs the model is built from, and the one distinction the whole thing rests on.

📄️Why Reactor

Reactor targets a full plugin platform, not only hook callbacks:

📄️Architecture

Constructs

📄️Slots or Contribution Points?

Both let a plugin add something. They answer different questions, and choosing