As it says in the official documentation https://www.raspberrypi.com/documentati ... amera.html ….can be installed in Buster using sudo apt install libcamera-apps

Buster Keaton, original name Joseph Frank Keaton IV, (born October 4, 1895, Piqua, Kansas, U.S.—died February 1, 1966, Woodland Hills, California), American film comedian and director, the “Great Stone Face” of the silent screen, known for his deadpan expression and his imaginative and often elaborate visual comedy.