The TUMexam client can be built and installed using Flatpak.
sudo dnf install flatpak flatpak-builder
flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
flatpak install flathub org.gnome.Sdk//43 org.gnome.Platform//43
sudo apt install flatpak flatpak-builder
flatpak install flathub org.gnome.Sdk//43 org.gnome.Platform//43
git clone https://github.com/flathub/de.tumexam.cli.git
cd de.tumexam.cli
flatpak-builder --force-clean flatpak_build_dir de.tumexam.cli.yml
flatpak-builder --user --install --force-clean flatpak_build_dir de.tumexam.cli.yml
flatpak uninstall de.tumexam.cli
flatpak run de.tumexam.cli