How to Install Retro Digital Clock on Ubuntu Linux
Retro is available as a flatpak package file from remote flathub repository. So you need to install flatpak and flathub on your system first. Follow below link for the latest version of flatpak installation.
After that restart your system. Now open the terminal application and run below Retro Digital Clock flatpak install command.
flatpak install flathub re.sonny.Retro
And start the clock using this command.
flatpak run re.sonny.Retro
And uninstall it using.
sudo flatpak uninstall re.sonny.Retro