Nightly Flatpak not built
It looks like that there are some warnings that are treated as errors:
[19/21] Generating libfeedback/Lfb-0.0.gir with a custom command (wrapped by meson to set env)
FAILED: libfeedback/Lfb-0.0.gir
env PKG_CONFIG_PATH=/app/lib/pkgconfig:/app/share/pkgconfig:/usr/lib/pkgconfig:/usr/share/pkgconfig:/run/build/feedbackd/_flatpak_build/meson-uninstalled PKG_CONFIG=/usr/bin/pkg-config 'CC=ccache cc' /usr/bin/g-ir-scanner --quiet --no-libtool --namespace=Lfb --nsversion=0.0 --warn-all --output libfeedback/Lfb-0.0.gir -I/run/build/feedbackd/_flatpak_build/data --c-include=libfeedback.h --quiet -DLIBFEEDBACK_COMPILATION -DLIBFEEDBACK_USE_UNSTABLE_API --warn-error --warn-all -I/run/build/feedbackd/libfeedback -I/run/build/feedbackd/_flatpak_build/libfeedback --filelist=/run/build/feedbackd/_flatpak_build/libfeedback/libfeedback-0.0.so.0.p/Lfb_0.0_gir_filelist -L/run/build/feedbackd/_flatpak_build/libfeedback --extra-library=feedback-0.0 --include=Gio-2.0 --symbol-prefix=lfb --identifier-prefix=Lfb --pkg-export=libfeedback-0.0 --cflags-begin '-DFEEDBACKD_THEME_DIR="/app/share/feedbackd/themes"' -DLIBFEEDBACK_COMPILATION -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/sysprof-6 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/gio-unix-2.0 -I/usr/include/gobject-introspection-1.0 --cflags-end --add-include-path=/usr/share/gir-1.0 -L/run/build/feedbackd/_flatpak_build/libfeedback --library feedback-0.0 -L/app/lib --extra-library=gio-2.0 --extra-library=gobject-2.0 --extra-library=glib-2.0 --extra-library=girepository-1.0 --sources-top-dirs /run/build/feedbackd/ --sources-top-dirs /run/build/feedbackd/_flatpak_build/
data/lfb-gdbus.h:171: Warning: Lfb: Couldn't find 'new_finish' for the corresponding async function: 'new'
data/lfb-gdbus.h:190: Warning: Lfb: Couldn't find 'new_for_bus_finish' for the corresponding async function: 'new_for_bus'
<unknown>:: Fatal: Lfb: warnings configured as fatal
<unknown>:: Fatal: Lfb: warnings configured as fatal
ninja: build stopped: subcommand failed.
Error: module feedbackd: Child process exited with code 1