F$3ked my MacBook up now it won't boot up

I was trying to revert root patches and ended up building opencore again

Sadly I made a mistake I think and built with 0.6.6 opencore legacy oatcher

Now MacBook won't open at boot

Shows apple, hangs

It's a MacBook from late 2015

I know I can create a USB BOOT INSTALLER for my machine but can someone be kind enough to let me know which opencore build I should be using for that Mac mentioned above?

Cheers all

Happy Friday