initial qml showing on device from IDE over SSH:

.gitignore

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+# This file is used to ignore files which are generated
+# ----------------------------------------------------------------------------
+
+*~
+*.autosave
+*.a
+*.core
+*.moc
+*.o
+*.obj
+*.orig
+*.rej
+*.so
+*.so.*
+*_pch.h.cpp
+*_resource.rc
+*.qm
+.#*
+*.*#
+core
+!core/
+tags
+.DS_Store
+.directory
+*.debug
+Makefile*
+*.prl
+*.app
+moc_*.cpp
+ui_*.h
+qrc_*.cpp
+Thumbs.db
+*.res
+*.rc
+/.qmake.cache
+/.qmake.stash
+
+# qtcreator generated files
+*.pro.user*
+CMakeLists.txt.user*
+
+# xemacs temporary files
+*.flc
+
+# Vim temporary files
+.*.swp
+
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.sdf
+*.opensdf
+*.vcxproj
+*vcxproj.*
+
+# MinGW generated files
+*.Debug
+*.Release
+
+# Python byte code
+*.pyc
+
+# Binaries
+# --------
+*.dll
+*.exe
+

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+
+project(testqtonrpi VERSION 0.1 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 6.4 REQUIRED COMPONENTS Quick)
+
+qt_standard_project_setup()
+
+qt_add_executable(apptestqtonrpi
+    main.cpp
+)
+
+qt_add_qml_module(apptestqtonrpi
+    URI testqtonrpi
+    VERSION 1.0
+    QML_FILES Main.qml
+)
+
+# Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
+# If you are developing for iOS or macOS you should consider setting an
+# explicit, fixed bundle identifier manually though.
+set_target_properties(apptestqtonrpi PROPERTIES
+#    MACOSX_BUNDLE_GUI_IDENTIFIER com.example.apptestqtonrpi
+    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+    MACOSX_BUNDLE TRUE
+    WIN32_EXECUTABLE TRUE
+)
+
+target_link_libraries(apptestqtonrpi
+    PRIVATE Qt6::Quick
+)
+
+include(GNUInstallDirs)
+install(TARGETS apptestqtonrpi
+    BUNDLE DESTINATION .
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)

Main.qml

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+import QtQuick
+import QtQuick.VirtualKeyboard
+
+Window {
+    id: window
+    width: 640
+    height: 480
+    visible: true
+    title: qsTr("Hello World")
+
+    Text {
+        text: "Yo yo what's up"
+    }
+
+    InputPanel {
+        id: inputPanel
+        z: 99
+        x: 0
+        y: window.height
+        width: window.width
+
+        states: State {
+            name: "visible"
+            when: inputPanel.active
+            PropertyChanges {
+                target: inputPanel
+                y: window.height - inputPanel.height
+            }
+        }
+        transitions: Transition {
+            from: ""
+            to: "visible"
+            reversible: true
+            ParallelAnimation {
+                NumberAnimation {
+                    properties: "y"
+                    duration: 250
+                    easing.type: Easing.InOutQuad
+                }
+            }
+        }
+    }
+}

main.cpp

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+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+
+int main(int argc, char *argv[])
+{
+    qputenv("QT_IM_MODULE", QByteArray("qtvirtualkeyboard"));
+
+    QGuiApplication app(argc, argv);
+
+    QQmlApplicationEngine engine;
+    const QUrl url(u"qrc:/testqtonrpi/Main.qml"_qs);
+    QObject::connect(
+        &engine,
+        &QQmlApplicationEngine::objectCreationFailed,
+        &app,
+        []() { QCoreApplication::exit(-1); },
+        Qt::QueuedConnection);
+    engine.load(url);
+
+    return app.exec();
+}