As someone who loves the tactile efficiency of physical hardware and custom key mappings, I was frustrated by desktop calculator apps forcing you to switch to the mouse just to click virtual buttons.

I built ViCalc —an open-source scientific desktop calculator created around muscle memory and pure keyboard control. The goal is to let you touch-type math seamlessly without your hands ever leaving the home row or numpad.

Keyboard-First Features & Design:

100% Keyboard Driven: Every single function, trig operation, and mode toggle is directly mapped to key combinations.…