-
dynamouse
macOS multi-mouse & multi-external display assignment for complex screen and peripheral workstations.
-
SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
-
-
I haven't been using it for this purpose, but Linear Mouse should be able to do the trick:
https://linearmouse.app/
-
-
Mos
一个用于在 macOS 上平滑你的鼠标滚动效果或单独设置滚动方向的小工具, 让你的滚轮爽如触控板 | A lightweight tool used to smooth scrolling and set scroll direction independently for your mouse on macOS
As others have mentioned, there's quite a few options, and I use mos (https://github.com/Caldis/Mos) for no particular reason. It does the same things as any of the alternatives, I just found it first and stuck with it since.
-
neko
Neko is a cross-platform cursor-chasing cat. This is the reimplementation write in Go. (by crgimenes)
I think it's relatively straightforward? Each mouse should be generating input events, it's "just" a matter of "Mouse1 += (100x, 200y)", "Mouse2 += (-3x, -5y)" and keeping track of a virtual cursor/pointer position that the "real" cursor should jump to depending on which mouse is generating input events.
...and for the use cases, having an extended desktop (eg: airplay to HDTV mounted on the wall) and being able to have your primary "desktop" mouse 100% glued to your main screen, but a secondary "click the play next video button on the tv" mouse is genius!
I'm pretty sure if somebody were sufficiently innovative they could paint a bullseye/target around the virtual cursors with some sort of minor performance penalty (a-la: xNeko - https://github.com/crgimenes/neko).