The individual mandate doesn't exist anymore. In 2017 Congress removed it starting in 2019.

https://en.wikipedia.org/wiki/Patient_Protection_and_Afforda...

But this ruling means it can't be done ever again (barring a Constitutional Amendment).

Both your comment and the parent comment are incorrect. First the individual mandate was not removed. The fine for not complying with the individual mandate was reduced to $0 but the mandate was not removed. This ruling states that since the fine is now $0 it can no longer be considered a tax and therefore is unconstitutional. Based upon this ruling a reimplementation of the individual mandate with a fine above $0 attached would be constitutional.

Full title: "Appeals court rules ACA’s individual mandate unconstitutional; lower court to decide whether rest of law can stand without it"