Ribs along a curved wall?

How can I create "ribs" like in this tutorial by MangoJelly but along a curved wall, always perpendicular to the curve's tangent? Visual explanation attempt:

https://preview.redd.it/udg2hvsmc2qe1.jpg?width=1851&format=pjpg&auto=webp&s=37ee2305585924e8d4ad15bb9ab26dda7eb773ee

(maybe someone can suggest better terminology for this too..)