set -e flathub_repo="flathub https://flathub.org/repo/flathub.flatpakrepo" flathub_packages_to_install="org.freedesktop.Platform//21.08 org.freedesktop.Sdk//21.08" apt update && apt install -y software-properties-common bzip2 flatpak flatpak-builder flatpak remote-add --if-not-exists $flathub_repo; flatpak install -y flathub $flathub_packages_to_install;