Python IoT Script for Raspberry Pi Camera

Need a Python script to control a Canon DSLR via a Raspberry Pi 4. The script should use gphoto2 to trigger the camera when a GPIO button is pressed. Sequence: take 3 photos, use ImageMagick to composite them onto a template, and upload the final JPEG to an AWS S3 bucket. Must be fault-tolerant for network drops. Hardware rig is accessible remotely via Tailscale.