flatpak

Repository management

flatpak remote-add --if-not-exists --user flathub https://dl.flathub.org/repo/flathub.flatpakrepo

... adds a remote for the official repo with the name flathub

flatpack remotes

... lists all local remotes

flatpak remote-delete flathub

... deletes the local remote flathub

Apps and searches

flatpak search libreoffice

... searches for libreoffice

flatpak remote-ls flathub

... lists all available packages (runtimes) on flathub

flatpak install flathub org.fdroid.Repomaker

... installs org.fdroid.Repomaker