in computers/default/docker.py [0:0]
def scroll(self, x: int, y: int, scroll_x: int, scroll_y: int) -> None:
"""
For simple vertical scrolling: xdotool click 4 (scroll up) or 5 (scroll down).
"""
self._exec(f"DISPLAY={self.display} xdotool mousemove {x} {y}")
clicks = abs(scroll_y)
button = 4 if scroll_y < 0 else 5
for _ in range(clicks):
self._exec(f"DISPLAY={self.display} xdotool click {button}")