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

How to Install Etcher on Gnu/Linux Distros

GNU/Linux Installing Etcher Guide

Install Balena Etcher on GNU/Linux desktops – Step by step Tutorials.

And Etcher for Linux is a Free and Open-Source Utility used for Burning Image Files such as .iso and .img, as well as Zipped Folders to Create Live SD Cards and USB Flash Drives.

How to Install Etcher in GNU/Linux Distros

GNU/Linux Install Balena Etcher Guide