stabilize live speed indicator and normalize hi-res wheel handling

daemon/src/main.rs

@@ -277,7 +277,18 @@ fn transform_event(
                 .max(0.001);
             state.last_scroll_event_at = Some(now);
 
-            let speed = (value.abs() as f64) / dt;
+            let axis_unit = if axis == RelativeAxisCode::REL_WHEEL_HI_RES
+                || axis == RelativeAxisCode::REL_HWHEEL_HI_RES
+            {
+                120.0
+            } else {
+                1.0
+            };
+
+            // Normalize hi-res wheel units (120 per detent) to "detent-equivalent"
+            // speed so tuning behaves similarly across REL_WHEEL and REL_WHEEL_HI_RES.
+            let normalized_value = (value as f64) / axis_unit;
+            let speed = normalized_value.abs() / dt;
             let (gain_x, gain_y) = sensitivity(speed, *mode, params);
             let gain = if axis == RelativeAxisCode::REL_HWHEEL
                 || axis == RelativeAxisCode::REL_HWHEEL_HI_RES
@@ -335,17 +346,6 @@ fn stats_path() -> PathBuf {
         return PathBuf::from(path);
     }
 
-    if let Ok(runtime_dir) = std::env::var("XDG_RUNTIME_DIR") {
-        return PathBuf::from(runtime_dir).join("gsf-speed.txt");
-    }
-
-    if let Ok(home) = std::env::var("HOME") {
-        return PathBuf::from(home)
-            .join(".local")
-            .join("state")
-            .join("gsf")
-            .join("speed.txt");
-    }
-
+    // Keep default shared across sudo/non-sudo runs.
     PathBuf::from("/tmp/gsf-speed.txt")
 }