install PySide6 Essentials only; Dockerfile revised

Author: Winand

Dockerfile

@@ -12,19 +12,32 @@ ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 
 ###############################################################################
-# https://doc.qt.io/qt-5/linux-requirements.html
-# export QT_DEBUG_PLUGINS=1
-RUN apt update && apt install -y libxrender1 libxcb-render0 libxcb-render-util0 \
-    libxcb-shape0 libxcb-randr0 libxcb-xfixes0 libxcb-sync1 libxcb-shm0 \
-    libxcb-icccm4 libxcb-keysyms1 libxcb-image0 libxkbcommon0 \
-    libxkbcommon-x11-0 libfontconfig1 libfreetype6 libxext6 libx11-6 libxcb1 \
-    libx11-xcb1 libsm6 libice6 libglibd-2.0-0
-# Additional requirements
-RUN apt install -y libgl1 libxcb-xinerama0 libdbus-1-3
-# Qt6 QtGui requires libEGL.so.1, libxcb-cursor0 for Qt xcb platform plugin
-RUN apt install -y libegl1 libxcb-cursor0
-# qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.
-RUN apt install -y libwayland-egl1 libwayland-cursor0
+# Requirements: https://doc.qt.io/qt-5/linux-requirements.html | https://doc.qt.io/qt-6/linux-requirements.html
+# Additional libraries for Qt5: libxcb-xinerama0 libxcursor1
+# Check module load: ldd $(python -c "from PySide6 import QtWidgets as m; print(m.__file__)")
+# Check Qt plugins load: QT_DEBUG_PLUGINS=1
+# Check all libs: find /usr/local/lib/python3.12/site-packages/PySide6 -type f -executable ! -name "*.py" ! -path "*/scripts/*" | xargs -I {} sh -c 'echo {}; ldd "{}" | grep "not found"'
+# Force Wayland or XCB: QT_QPA_PLATFORM=wayland | wayland-egl | xcb
+RUN apt update && apt install -y \
+  libgl1 \
+  libxkbcommon0 \
+  libegl1 \
+  libfontconfig1 \
+  libglib2.0-0 \
+  libdbus-1-3 \
+  libxcb-cursor0 \
+  libxkbcommon-x11-0 \
+  libxcb-icccm4 \
+  libxcb-keysyms1 \
+  libxcb-shape0 \
+  libwayland-cursor0 \
+  libatomic1 \
+  libwayland-egl1 \
+  libxrender1 \
+  libice6 \
+  libsm6 \
+  && rm -rf /var/lib/apt/lists/*
+
 ###############################################################################
 
 WORKDIR /app

pyproject.toml

@@ -18,7 +18,7 @@ build-backend = "hatchling.build"
 
 [dependency-groups]
 dev = [
-    "pyside6>=6.8.2.1",
+    "pyside6-essentials>=6.8.2.1",
 ]
 
 [tool.ruff]