From his website, I learned that he is a “VISIONAIRE, INVENTOR, and PHILANTROPIST (sic)”:

https://www.sebastienlagree.com/

Maybe this is the final form of someone that permanently leaves xcode to market. Wow.

The author of the article makes a third party app that assists with these workouts, he isn’t Lagree.

lol, I didn't expect this before I clicked

It’s a kind of Pilates.

Sort of like Bikram for hot yoga.

Recently learned that Pilates is called what it is because it was invented by Joe Pilates

Don’t worry, this is false and the article says so.

Yes, that's the joke.