Some examples of Handly usage are provided in bundles under the common org.eclipse.handly.examples namespace. Each example has its own namespace (e.g., o.e.handly.examples.basic) and the corresponding set of bundles. The root bundle for every example contains the accompanying README.md file. There are predefined launch configurations for launching runtime Eclipse and plug-in tests.
You might want to clone the project‘s Git repository and set up a developer workspace to be able to play with the examples most productively. Please see the project’s Developer Resources for information on setting things up.
Another option is to materialize example projects in your workspace using wizards under the Handly Examples category. Make sure that you have the org.eclipse.handly.examples feature installed, then use File -> New -> Example... to select the appropriate wizard. The root project for every example contains the accompanying example.target file you can use to easily set a target platform for the example. Where necessary, the example.p2f file is also provided that describes software items you need to have installed in your IDE to be able to play with the example most productively. To install it, use File -> Import... -> Install Software Items From File.