Help with building neuron field

General
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I have to make a weird scene including a neuron field with fly through, something like this: https://www.youtube.com/shorts/cErczMVizfU.

Is there a way to use an array modifier or geometry nodes to duplicate a sculpted object in a random way, or do I have to manually duplicate and arrange the scene to what I want? Also, any idea on how to make the lights? I read somewhere that someone could just use a point light and a modifier to follow a path, but I’m worried that won’t work with my object because I used snake hook to make my neuron, rather than use curves/beziers. Sorry for so many questions, any advice is appreciated!

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This is what the scene currently looks like

neuronparty_sample0001
neuronparty_sample0001960×540 468 KB

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there is a way

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https://www.youtube.com/watch?v=KbNCmRSbXWE refer to this tutorial for that

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How do you use the path to control the speed of the light movement? Is there a way to have it reverse the path back where it came from using this technique?

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you can change the speed in particle settings of the plane

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