MY COMMISSIONS ARE OPEN
(late reply sorry)
my English is pretty bad in this tutorial, and I didn't explain it good enough
here is an updated version I made after this, which includes screenshots and overall a better explanation, hope it helps!
I really like the effect this gives, and I even managed to get it to work once, but since then it never seems to come out right and I just see jaggies underneath the lines. I wish I could figure out what I was doing wrong.
I also highly recommend to check out the tutorial linked in the description, it’s an updated version and better explained as well :)