I wanted to try how it feels to write an UI in glimmer-dsl-tk so I decided to write an alternative version of the Glimmer Calculator that uses Tk and runs in the regular MRI Ruby interpreter.
The model and the infrasctructure code are directly stolen from the original Glimmer Calculator. I only rewrote the view. This is how it looks in my Linux system with the default Tk theme.
Since most of the code is taken from Glimmer Calculator, I'm keeping the copyright (c) 2020 Andy Maleh. See LICENSE.txt for further details.