$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Flatpak on Gnu/Linux Distros

GNU/Linux Installing Flatpak Guide

Hi! The Tutorial shows you Step-by-Step How to Install Flatpak in GNU/Linux Desktops.

And Flatpak for Linux is a technology for Building, Distributing, Installing and Running Linux Apps.

Furthermore, the Flatpak App is Build into a Container like Docker and can be Installed on All GNU/Linux Distros disposing of Flatpak.

Finally, Flatpak is primarily targeted at the Linux Desktop, although it can also be used as the basis for application distribution in other contexts, such as embedded systems.

Install Flatpak Linux Distros - Featured

GNU/Linux Flatpak Installation Guide