buildx failed with: ERROR: failed to solve: process "/bin/sh -c mkdir -pm755 /etc/apt/preferences.d && echo \"Package: firefox*\\nPin: version 1:1snap*\\nPin-Priority: -1\" > /etc/apt/preferences.d/firefox-nosnap && add-apt-repository -y ppa:mozillateam/ppa && apt-get update && apt-get install --no-install-recommends -y kde-plasma-desktop adwaita-icon-theme-full appmenu-gtk3-module ark aspell aspell-en breeze breeze-cursor-theme breeze-gtk-theme breeze-icon-theme debconf-kde-helper desktop-file-utils dolphin dolphin-plugins dbus-x11 enchant-2 fcitx fcitx-frontend-gtk2 fcitx-frontend-gtk3 fcitx-frontend-qt5 fcitx-module-dbus fcitx-module-kimpanel fcitx-module-lua fcitx-module-x11 fcitx-tools filelight frameworkintegration gwenview haveged hunspell im-config kate kcalc kcharselect kdeadmin kde-config-fcitx kde-config-gtk-style kde-config-gtk-style-preview kdeconnect kdegraphics-thumbnailers kde-spectacle kdf kdialog kget kimageformat-plugins kinfocenter kio kio-extras kmag kmenuedit kmix kmousetool kmouth ksshaskpass ktimer kwayland-integration kwin-addons kwin-x11 libdbusmenu-glib4 libdbusmenu-gtk3-4 libgail-common libgdk-pixbuf2.0-bin libgtk2.0-bin libgtk-3-bin libkf5baloowidgets-bin libkf5dbusaddons-bin libkf5iconthemes-bin libkf5kdelibs4support5-bin libkf5khtml-bin libkf5parts-plugins libqt5multimedia5-plugins librsvg2-common media-player-info okular okular-extra-backends partitionmanager plasma-browser-integration plasma-calendar-addons plasma-dataengines-addons plasma-discover plasma-integration plasma-runners-addons plasma-widgets-addons policykit-desktop-privileges polkit-kde-agent-1 print-manager qapt-deb-installer qml-module-org-kde-runnermodel qml-module-org-kde-qqc2desktopstyle qml-module-qtgraphicaleffects qml-module-qtquick-xmllistmodel qt5-gtk-platformtheme qt5-image-formats-plugins qt5-style-plugins qtspeech5-flite-plugin qtvirtualkeyboard-plugin software-properties-qt sonnet-plugins sweeper systemsettings ubuntu-drivers-common vlc vlc-l10n vlc-plugin-access-extra vlc-plugin-notify vlc-plugin-samba vlc-plugin-skins2 vlc-plugin-video-splitter vlc-plugin-visualization xdg-desktop-portal-kde xdg-user-dirs firefox pavucontrol-qt transmission-qt && apt-get install --install-recommends -y libreoffice libreoffice-kf5 libreoffice-plasma libreoffice-style-breeze && rm -rf /var/lib/apt/lists/* && update-alternatives --set x-www-browser /usr/bin/firefox && cp -f /usr/lib/x86_64-linux-gnu/libexec/kf5/start_kdeinit /tmp/ && rm -f /usr/lib/x86_64-linux-gnu/libexec/kf5/start_kdeinit && cp -r /tmp/start_kdeinit /usr/lib/x86_64-linux-gnu/libexec/kf5/start_kdeinit && rm -f /tmp/start_kdeinit && echo \"[Daemon]\\nAutolock=false\\nLockOnResume=false\" > /etc/xdg/kscreenlockerrc && echo \"[KDE]\\nSingleClick=false\\n\\n[KDE Action Restrictions]\\naction/lock_screen=false\\nlogout=false\" > /etc/xdg/kdeglobals" did not complete successfully: exit code: 1

The run was canceled by @ehfd.