instead of sending plasmashell output to nirvana, I had the idea to run plasmashell in a shell (no pun intended, but nice… 
)
$ plasmashell
kf.plasma.quick: Applet preload policy set to 1
Cyclic dependency detected between "file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml" and "file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml"
trying to show an empty dialog
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
trying to show an empty dialog
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
kf.coreaddons: KDirWatch: "/home/_USER_/.local/share/wallpapers" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Autumn" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Breath2" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/BytheWater" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Canopee" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Cascade" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Cluster" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/ColdRipple" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/ColorfulCups" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/DarkestHour" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Elarun" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/EveningGlow" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/FallenLeaf" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Flow" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/FlyingKonqui" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Grey" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/IceCold" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Kite" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Kokkini" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Next" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/OneStandsOut" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Opal" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/PastelHills" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Path" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/SafeLanding" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/summer_1am" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/wallpapers/Volna" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/backgrounds" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/backgrounds/manjaro-wallpapers-18.0" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/backgrounds/wallpapers-2018" is a directory. Use addDir!
kf.coreaddons: KDirWatch: "/usr/share/backgrounds/wallpapers-juhraya" is a directory. Use addDir!
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/DigitalClock.qml:302:13: QML PropertyChanges: Cannot assign to non-existent property "font.minimumPixelSize"
trying to show an empty dialog
Entry is not valid "kontact.desktop" QSharedPointer(0x556e0960f070)
Entry is not valid "ktp-contactlist.desktop" QSharedPointer(0x556e0963d7a0)
Entry is not valid "org.kde.discover" QSharedPointer(0x556e0960f0c0)
Entry is not valid "kontact.desktop" QSharedPointer(0x556e0963da40)
Entry is not valid "ktp-contactlist.desktop" QSharedPointer(0x556e0960ecd0)
Entry is not valid "org.kde.discover" QSharedPointer(0x556e0960ed20)
file:///usr/share/plasma/plasmoids/org.kde.panel/contents/ui/main.qml:30:1: QML DropArea (parent or ancestor of QQuickLayoutAttached): Binding loop detected for property "minimumHeight"
trying to show an empty dialog
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Panel.qml:73:5: QML Binding: Not restoring previous value because restoreMode has not been set.
This behavior is deprecated.
You have to import QtQml 2.15 after any QtQuick imports and set
the restoreMode of the binding to fix this warning.
In Qt < 6.0 the default is Binding.RestoreBinding.
In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Panel.qml:89:5: QML Binding: Not restoring previous value because restoreMode has not been set.
This behavior is deprecated.
You have to import QtQml 2.15 after any QtQuick imports and set
the restoreMode of the binding to fix this warning.
In Qt < 6.0 the default is Binding.RestoreBinding.
In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
Both point size and pixel size set. Using pixel size.
file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/Tooltip.qml:66:9: QML GridLayout (parent or ancestor of QQuickLayoutAttached): Binding loop detected for property "minimumWidth"
file:///usr/share/plasma/plasmoids/org.kde.panel/contents/ui/main.qml:30:1: QML DropArea (parent or ancestor of QQuickLayoutAttached): Binding loop detected for property "minimumHeight"
Error: cannot change the containment to AppletsLayout
Error: cannot change the containment to AppletsLayout
Cyclic dependency detected between "file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/global/Globals.qml" and "file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/NotificationHeader
libkcups: CUPS-Get-Printers last error: 0 successful-ok
libkcups: Get-Jobs last error: 0 successful-ok
libkcups: Get-Jobs last error: 0 successful-ok
libkcups: Create-Printer-Subscriptions last error: 0 successful-ok
file:///usr/lib/qt/qml/org/kde/plasma/extras/PlasmoidHeading.qml:53:5: Unable to assign [undefined] to int
Plasma Shell startup completed
Plasma Shell startup completed
Plasma Shell startup completed
libkcups: 3 "Leer-Kyocera-FS-920"
libkcups: 0
libkcups: 0
trying to show an empty dialog
kf.kio.core: "Could not enter folder tags:/."
kf.kio.core: "Could not enter folder tags:/."
kf.kio.core: "Could not enter folder tags:/."
kf.kio.core: "Could not enter folder tags:/."
file:///usr/lib/qt/qml/org/kde/plasma/components.3/ComboBox.qml:74:9: Unable to assign [undefined] to QQmlComponent*