From 'I Just Want a Piggy Bank' to a CNC-Ready Matrix Generator

Most of what I write about here is software development. But in my free time, I also like to mess around with a CO2 laser CNC machine. Recently I wanted to build a piggy bank (saving box) where you track progress by crossing out a number grid until you hit a target amount. The Problem: Templates Exist Until They Don't Online templates work only for common totals. As soon as you need custom values, they break down: You want a custom target (for example: 750, 1350, 4200) You want your own grid size (rows and columns based on your physical design) You want specific denominations (for example: 1, 2, 5, 10, 20, 50, 100) As software engineers, we usually do not stop at "close enough." We build what we actually need. What I Built: Piggy Bank Matrix Builder Piggy Bank Matrix Builder generates a CNC-ready SVG matrix using your target sum, chosen numbers, and grid size. What It Does Set a target sum Provide numbers (comma-separated) as denominations or any custom values Choose rows and columns A