Apparent Wind Sail-Trim Simulator. This simulator trims an A-Class catamaran towards apparent wind. While this is an idealization, it comes close enough to get a better understanding of sail-trim.

Polycut is a tool designed to import SVG files and convert them to 2D GCode to run on 3D Printers that have blades/pens/knives/foil stampers or other tools attached. It also directly supports uploading to a networked 3D Printer via Klipper. Think of it as an alternative to buying a Cricut if you already have a 3D Printer.

Source code for sailing/windsurfing/foiling app that can be found on the Garmin app store