- Settings (move from https://doc.qt.io/qt-5/qml-qt-labs-settings-settings.html)
- StandardPaths (move from https://doc.qt.io/qt-5/qml-qt-labs-platform-standardpaths.html)
- Process? environment? (https://codereview.qt-project.org/c/qt/qtdeclarative/+/166724)
- mime database? (https://codereview.qt-project.org/c/qt/qtdeclarative/+/192851/)
- FolderListModel? move here or into QtQml.Models?
- File I/O?
- the Qt Qml type has a few that sound like they could be here, to find all such stuff in one place; e.g. openUrlExternally(url target): https://doc.qt.io/Qt-6/qml-qtqml-qt.html