As a developer, I am collecting information on Roon interfaces (local, network).
Typically, I would like to send orders to Roon (start to play “such” album, etc.).
Is there any place/wiki where I could read such things?
The #tinkering:roonapi section of the forum might be a better place to start off. There you can also find many threads about existing Roon Extensions that make use of the API – take a look at their source code where it is available. You can find information about Roon’s API under the following link: Roon API for Javascript: An overview and tutorial.