pqrs-org/Karabiner-Elements

Change mouse sensitivity in certain apps

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#4,300 opened on Oct 27, 2025

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Description

Hi Everyone,

Is there a way to tie together the bundle_indentifiers condition with mouse's XY movement multiplier parameter?

Adjusting mouse sensitivity per app seems to be a pretty common workflow, but I haven't found any related documentation or examples so I wonder is this possible at all?

Thanks for your responses in advance.

Contributor guide

Research direction
Investigate how bundle identifiers condition is implemented and how mouse XY movement multiplier is applied, then determine if they can be combined.
Tech stack
cpp
Domain
desktop
Issue type
Research
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++macOS
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40