This sim increases the width of particles along a curve and keeps them seperated with the push apart node.

This sim increases the width of particles along a curve and keeps them seperated with the push apart node.
This sim locks particles in place with transform stick and releases them one after another to create a melting effect.
This setup creates a balloon with a line and emits multiple instances into a cloth sim.
This setup ignites a smoke sim at one point and let the fire spread across the whole mesh.