How to SSL Pyramid Star in Super Mario 64 speedrunning

"Shining Atop the Pyramid" in Shifting Sand Land aka Pyramid Star SM64 speedrun technique quick & simple guide/tutorial.
Most useful for SM64 16 star speedruns, 70 star speedruns, and 120 star speedruns.
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"Super Mario 64 is a platform game developed and published by Nintendo for the Nintendo 64. It is the first Super Mario game to feature 3D gameplay, combining traditional Super Mario gameplay, visual style, and characters in a large open world.
In the game, Bowser, the primary antagonist of the Super Mario franchise, invades Princess Peach's castle and hides the castle's sources of protection, the Power Stars, in many different worlds inside magical paintings.
As Mario, the player collects Power Stars to unlock enough of Princess Peach's castle to get to Bowser and rescue Princess Peach."