We describe a simple method to annotate scripts (bash, csh, python,
and perhaps more) extract a set of variables which are presented in a
GUI (currently using Qt5) and able to run the script. An older version
using tk (wish) is still available.

We show two examples. The first example is a very generic GUI builder,
agui, which can be used in a number of scripting languages. The second
is called pythena, and uses the principles of the first and provides a
GUI interface to run the AthenaK MHD modeling code.

In the first example, exploring a large parameter space could be
combined with the script producing multi-variate data on-the-fly,
which can then be explored with 3rd party tools like such as glueviz
or topcat.