feat: PySide6 dev environment with runnable examplesHEADmain

Flake devShell (PySide6 6.11 on Python 3.13, designer, uic/rcc from
qtbase libexec, offline docs) plus hello_widgets and hello_quick
examples. QML_IMPORT_PATH exported — nixpkgs PySide6 finds platform
plugins on its own but not QML imports; see README.

1 files changed, 22 insertions, 0 deletions

diff --git a/examples/hello_quick.py b/examples/hello_quick.py
new file mode 100644
index 0000000..0ffa9f2
--- /dev/null
+++ b/examples/hello_quick.py
@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+"""Minimal PySide6 Qt Quick app: loads Main.qml next to this script."""
+
+import sys
+from pathlib import Path
+
+from PySide6.QtGui import QGuiApplication
+from PySide6.QtQml import QQmlApplicationEngine
+
+
+def main() -> int:
+    app = QGuiApplication(sys.argv)
+
+    engine = QQmlApplicationEngine()
+    engine.objectCreationFailed.connect(lambda: sys.exit(1))
+    engine.load(Path(__file__).parent / "Main.qml")
+
+    return app.exec()
+
+
+if __name__ == "__main__":
+    sys.exit(main())