The product is simple.
The work behind it is open to inspect.

Start with what a person does. Follow how 4789 responds. Go as deep as the protocol and code when you want proof.

Why show the machinery?

4789 connects personal libraries, third-party services, local files, and devices in the home. Clear boundaries matter.

  • The interface comes first.Architecture explains a claim only after the product has made it understandable.
  • Unknown stays unknown.Missing source, codec, or receiver facts are not rewritten as certainty.
  • Local state stays local.No 4789 account is required. Optional connected services receive only the requests needed to do their work.
  • Failures get names.Playback, network, source, and receiver errors are treated as different problems.

Begin with one evening.

The workflow map is the clearest route from the product story into the engineering behind it.

Open the workflow map
First
Human journey
Then
System response
Finally
Protocol and code