This reminds me, a company I worked at used a bash script + zenity to automate the programming of devices using open-jtag. It worked pretty well and let the workers (skilled mostly in soldering and electronics assembly) do the programming and flashing of a fairly involved embedded device. We eventually ended up replacing it with a local web-app but the zenity version was fast to write and good enough that the quick and dirty prototype survived for several years.

My pitch for zenity would be - "Need a prototype gui for users that struggle in the console? Consider zenity."