In my project, I'm trying to make a tiled roof. I'd like the tiles to follow a curve. Here's what I've tried and what worked.

Curve tangent

I tried to convert the curve tangent into some rotation angle to rotate each cylinder. However, I'm probably misunsing Rotate Euler.

Curve to points

Eventually I found the answer in this post: all I had to use was the Curve to points node. It exposes a rotation attribute.

End result

And here's my Korean style roof: