Triplanar mapping from Local Space - problem when scaling. How to make it work?

it’s just that you want the texture to rotate with the object. ( right? )

Correct.

Basically I have many minimal cubic-form props that with little non uniform scaling and rotation - could look very different. I want to add stone and other textures on them that doesn’t distort when doing this.
Otherwise I have added correctly orientated Box UVs on the props, if this is helpful at all…