neko VS linearmouse

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).

Problem solved: https://linearmouse.app/

Approximately the same features as SteerMouse but free. I've voluntarily donated to the dev, though.

8. Linear Mouse

I haven't been using it for this purpose, but Linear Mouse should be able to do the trick:

https://linearmouse.app/

to add to the mouse/input apps mentioned, i'll add https://github.com/thealpa/SaneSideButtons and https://linearmouse.app/, the "avoid installing steelseriesengine or logi options" stack

- Settings are different per input device, scrolling can be per app

[0]: https://linearmouse.app/

LinearMouse - Price: Free Mouse acceleration manager for macOS that allows you to customize your mouse acceleration curve.

Try linearmouse, the app is amazing, free, and also gets rid of mouse acceleration. https://linearmouse.app

LinearMouse

I used to use steer mouse and it was good, just the settings panel was loading very slow. Now I use linearmouse and it's much simpler to setup and even works with magic mouse (which steer mouse didn't do).