The Snowflake Method is more specific, but broadly similar to those who build out plot using index cards.

As examples, see Dustin Lance Black and Benjamin Rowland.

Link to - https://hypothes.is/a/043JIlv5Ee2_eMf1TTV7ig - https://hypothes.is/a/ibFMareUEe2bqSdWdE046g

https://www.youtube.com/watch?v=mwKjuBvNi40

Ben Rowland uses index cards to outline the plot of his screenplays. This is a common practice among screenwriters. Interestingly he only uses it for plot outlining and not for actual writing the way other writers like Vladimir Nabokov may have. Both Benjamin Rowland and Duston Lance Black use cards for outlining but not at the actual writing stage.

<small><cite class='h-cite via'>ᔥ <span class='p-author h-card'>Billy Oppenheimer</span> in The Notecard System: Capture, Organize, and Use Everything You Read, Watch, and Listen To (<time class='dt-published'>11/03/2022 16:53:44</time>)</cite></small>

Nothing stupendous here. Mostly notes on cards and then laid out to outline. Most of the writing sounds like it happens at the transfer stage rather than the card and outline stage.

This process seems more akin to that of Victor Margolin than Vladimir Nabokov.

NOW I SAY, "OKAY, THIS IS DONE." I READ IT. IT FEELS LIKE A MOVIE. AND I'M GONNA PUT IT IN THE BOX. AND I'M GONNA PUT IT IN THE BOX IN THIS ORDER, AND THIS IS THE ORDER THAT I'M GONNA WRITE IT IN IN MY FIRST DRAFT. OVER THE NEXT NUMBER OF WEEKS, I START WRITING. WHAT I'VE BEEN DOING, I'VE BEEN SEEING THE SCENES IN MY HEAD FOR SO LONG AT THIS POINT THAT IT'S ALMOST LIKE JUST REGURGITATION. LIKE, I'M JUST GETTING OUT. AND I CALL IT MY VOMIT DRAFT. #

Dustin Lance Black's "vomit draft" is similar to Mozart's peeing his music out like a cow. His method is also similar to Victor Margolin who's gone over the material several times by the time he's finally writing out his draft.