Got it — three actions detected: idle (in place), walk_left and walk_right (movement, each with its own facing). All 3x4, 12 frames each. I'll write a slicer and slice each sheet: python split_sheet.py idle.png --rows 3 --cols 4 --out frames/idle python split_sheet.py walk_left.png --rows 3 --cols 4 --out frames/walk_left python split_sheet.py walk_right.png --rows 3 --cols 4 --out frames/walk_right -> 36 frames saved across frames/idle, frames/walk_left, frames/walk_right. Then I generate desktop_pet.py (PyQt5): a frameless, transparent, always-on-top window. It loops idle by default, and after a random 1-5 minutes it walks across the desktop, turning at the edges using walk_left/walk_right for correct facing, then returns to idle. Left-click drags it; right-click switches pose or closes it. Config is at the top. I detected Python, installed pillow and PyQt5, and created start_pet.command for your Mac. To run: keep frames/, desktop_pet.py and start_pet.command in one folder, then double-click start_pet.command. Your pet is on the desktop now.