The Thea Node installer can be downloaded either from your Altair One account or the Downloads page on the Thea Render website. After running the installer, go through all the steps and make sure that "Create Desktop Shortcut" is checked before clicking on the "Finish" button.
To be added
Before proceeding with the installation, you will need to extract the .zip archive to get the .run installer.
chmod -x TheaNode_v3.0.008.1951.run