diff --git a/pkgs/eyezoom.nix b/pkgs/eyezoom.nix
index 3fb7d0c..8dbfa0e 100644
--- a/pkgs/eyezoom.nix
+++ b/pkgs/eyezoom.nix
@@ -17,18 +17,30 @@ WFACTOR=4
 
 WIDEDIV=2
 
+mouse="pointer:Logitech MX Vertical"
+zoomsens=0.1
+# calculated using this with x = x+1, y = y+1. works, not sure why...
+# https://unix.stackexchange.com/questions/491531/how-to-avoid-mouse-cursor-jumping-while-using-xinput-coordinate-transformation-m
+xpos=$(( offx + (W / 2) + 1 ))
+ypos=$(( offy + (H / 2) + 1 ))
+zoommatrix="$zoomsens 0 $(${pkgs.bc}/bin/bc -l <<< "(1-$zoomsens)*$xpos") 0 $zoomsens $(${pkgs.bc}/bin/bc -l <<< "(1-$zoomsens)*$ypos") 0 0 1"
+
 case "$arg" in
   eye)
     ${pkgs.wmctrl}/bin/wmctrl -R ':ACTIVE:' -e 0,$offx,$(( offy - (H * HFACTOR / 2) + (H / 2) )),$W,$((H*HFACTOR))
+    xinput set-prop "pointer:Logitech MX Vertical" "Coordinate Transformation Matrix" $zoommatrix
   ;;
   tiktok)
     ${pkgs.wmctrl}/bin/wmctrl -R ':ACTIVE:' -e 0,$(( offx - ((W/WFACTOR)/2) + (W/2))),$offy,$((W/WFACTOR)),$H
+    xinput set-prop "pointer:Logitech MX Vertical" "Coordinate Transformation Matrix" 1 0 0 0 1 0 0 0 1
   ;;
   wide)
     ${pkgs.wmctrl}/bin/wmctrl -R ':ACTIVE:' -e 0,$offx,$(( offy - ((H / WIDEDIV) / 2) + (H / 2) )),$W,$((H/WIDEDIV))
+    xinput set-prop "pointer:Logitech MX Vertical" "Coordinate Transformation Matrix" 1 0 0 0 1 0 0 0 1
   ;;
   *)
     ${pkgs.wmctrl}/bin/wmctrl -R ':ACTIVE:' -e 0,$offx,$offy,$W,$H
+    xinput set-prop "pointer:Logitech MX Vertical" "Coordinate Transformation Matrix" 1 0 0 0 1 0 0 0 1
   ;;
 esac
 ''