add experimental deb-src to apt sources.list
deb-src https://deb.debian.org/debian experimental main contrib non-free
fetch the source
apt update && apt install equivs && apt source lxqt-build-tools libqtxdg liblxqt libsysstat \
libfm-qt lxqt-themes pavucontrol-qt lxqt-about lxqt-admin lxqt-config lxqt-globalkeys lxqt-notificationd \
lxqt-openssh-askpass lxqt-policykit lxqt-powermanagement lxqt-qtplugin lxqt-session lxqt-sudo pcmanfm-qt lxqt-panel \
lxqt-runner lxqt-archiver lximage-qt qtermwidget qterminal qps screengrab
wget https://raw.githubusercontent.com/djsftree/arm64_playground_djsftree/main/make_debs.sh
sh make_debs.sh