How LinguaX Works
LinguaX is a native macOS tool built around two co-equal core modules — mouse enhancement and automatic input source switching. Both run natively in the background. They are independent at the mechanism level, sharing only the license gate and an app-activation coordinator, so each works on its own and disabling one never affects the other.
Runtime model
LinguaX has two core capabilities. Marketing leads with the mouse, but mechanically the two modules sit side by side — neither is built on top of the other.
Mouse enhancement
This module makes any third-party mouse feel native:
- Smooth scrolling replaces jumpy, notch-by-notch wheel input with a tunable curve.
- Button and gesture mapping binds side buttons, wheel tilt, and gestures to real actions.
- Pointer speed is applied instantly through a low-level system path.
It is configured on its own and keeps working regardless of which app is in front.
Input source switching
The other core module switches your input source automatically based on context. It is fully independent of mouse enhancement — you can run LinguaX purely for one, the other, or both.
When enabled, it reacts to context changes:
- Detect the active app.
- If the app is a browser, detect the active domain.
- Match configured app and domain rules.
- Apply the target input source.
- Re-check on each context change.
Input source switching can also be triggered manually by binding the switchInputSource action to a keyboard shortcut or a mouse gesture.
Why this model is lightweight and reliable
- Native and local. A ~10MB macOS app — no Electron, no kernel driver, no account.
- No telemetry. Configuration stays on your Mac.
- Fast, predictable decisions made locally on each context change.
- Incremental setup. Enable either core module independently and add rules only when you need them.