How to make instances twist about a curve

Question

I am wanting this ring to appear as a twisted chain, hopefully with a variable number of 180 turns it makes as an integer input to the Geometry Nodes group. I want the chain to be twisted as a whole. I.e. if you were to cut the loop and suspend the chain so it hung from an end, it would untwist, like a twisted rope swing.

This is the ring I have with the geometry notes. This is currently incorrect:

These are the nodes I have:

How best to make instances twist about a curve in Geometry Nodes?

Edit: Here is a demo of what I'd like to achieve. Apologies that the rings are intersecting each other. This is not desired: They are meant to realistically link together.

Note that I would like to be able to adjust the starting angle, to achieve a rolling effect, like this:

Answer 1

Do you mean something like this?

Each link's points are rotated about its local Y by a function of its local X, before being instanced on a circle, and then converted to a mesh.

... which can be animated by key-framing the tilt angle of the Set Tilt node in the Main Ring cluster:

You can introduce an initial twist to the chain, of, say, pi * the main ring's (0-1) Spline Parameter, and animate a delta: an additional angle to that....

.. with this sort of 'rolling' result: