The Logitech Trackman Marble lacks a physical scroll wheel. This repository allows you to hold down a specific, or either side button to scroll with the wheel. BONUS: remap the other button as middle click during install.

A small Rust program that repurposes a trackball’s back button into a scroll toggle. When you press and hold the back button, moving the trackball will produce scroll events instead of pointer movements. Releasing the back button returns it to normal movement mode.

This article in the Syncfusion Knowledge Base explains how to display X and Y values of trackball moving trace in Labels in .NET MAUI Cartesian Chart

Small daemon to tweak pointer device behaviour

flutter_cartesian_chart_customized_trackball