Run Iris examples on desktop and Android

docs/PLAN.md

@@ -809,6 +809,10 @@ javac, d8, aapt2, jar, zipalign and apksigner. Gradle is not in the ordinary
 path because Iris's fixed Java view host has no Maven/AAR dependency or
 variant graph for it to manage. An application that later embeds Iris in a
 larger Gradle project can use that project as the packaging authority instead.
+`--example NAME` packages the example's sibling `android.rs` as the Android
+`cdylib`; `desktop.rs` remains Cargo's example target and both import their
+shared `lib.rs`. This keeps the same widget tree runnable on both platforms
+without adding another crate or making shared content select its host.
 
 The tool discovers and validates prerequisites but never installs an SDK,
 NDK, JDK, system image or emulator. `cargo iris run` requires an explicit