SupAlpuket Graham .
Maybe, you haven't understand,


Yes, XtScript Code Parsed First

var $name = value

as we know, that can outputed at outer xtscript like {_$$name|} and why not try pass that '$name' to internal twig API and we can do something

{% if name %} hello {{name}} {% endif %}

use 'name' only or namespaced instead, like 'xtvar_name'

.
i hope you understand now