For Syrinscape integration, all that is used is a URI (Uniform Resource Identifier) that your local computer, through a browser, will know what application to launch (identified by the URI Scheme) to access the path to the resource specified after the URI : separator.
For example: syrinscape-sci-fi:moods/c2hpcGJvYXJkLXNjaS1maTo6QnVzeSBvbiB0aGUgYnJpZGdl/play/
- syrinscape-sci-fi - is the URI scheme that tells your local computer to run the application registered with that scheme. In this case the Syrinscape Sci-Fi application. If it's not installed and registered properly, nothing will happen.
- moods/c2hpcGJvYXJkLXNjaS1maTo6QnVzeSBvbiB0aGUgYnJpZGdl/play/ - this is the data passed to the application launched - the application will handle this as a request to do an action and will process this data as necessary. In this case, it refers to playing a specific mood.
In theory, any URI scheme (the name before the :) that works in a browser on your specific computer, should work in a link in the DOE Sound extension. It's a good idea to try them in your browser first - to get the syntax right and test that the correct application launches with the right data.
As an example of a useful URI scheme: the file scheme results in your local file system being accessed - with the path to the file being supplied. This is the same as double-clicking on the file in file explorer - if there is an application associated with the file type (extension) e.g. Windows Media Player for .mp3, then that application will launch and access the file.
For example: file:///C:/Windows/media/Alarm01.wav
For some files, testing in your browser is not 100% accurate - as your browser may run the file within the browser - but it can be used to double-check the URI scheme and path syntax to a specific file. To fully check - try the URI in your browser to prove the syntax is correct, then double-click on the file in file explorer - to check if the file type (file extension) automatically launches an appropriate application to run the file.
More info on the file URI scheme here: https://en.wikipedia.org/wiki/File_URI_scheme
Here's a list of a bunch of URI schemes: https://www.iana.org/assignments/uri...-schemes.xhtml This is not exhaustive (note that Syrinscape is not on here) as what you can use on your computer depends on what you have installed and the URI scheme/s the applications installed have registered locally.

