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create a Projection Camera connected by expression to the original Camera, and a slider to control the frame from where you are projecting

Chose up to 4 points of a roto shape to track and bake them into a tracker node to get the translation, rotation and scale value

Collect all the read nodes sequences (also read geo nodes, and camera nodes with the read file checked) into a project folder and give a relative path to every read nodes. Once everything is collected into the Project folder you can move the folder everywhere you want without loosing the connection in the nuke script with the read nodes. Great for free freelance or students projects.