NASA has finalised the "the initial design and technology development phase for the Ground Systems Development and Operations (GSDO) Program" that will build and launch their new manned spacecraft fleet. They made a fascinating technical video that shows how they will assemble and launch "different spacecraft and rockets in development for human exploration."
I love these animated CAD designs. Can you imagine them designing each of these pieces in the computers and then making and assembling them, from the vehicle assembly tools and platforms to the spaceships themselves? What about how they did it during the Apollo years, with pencil, ink, and paper, without CAD or computers? It truly blows my mind.