How to do this particle animation effect

Hey, guys
I’ve been working on my LEGO animation duel on Mustafar for a couple of months and I am stuck.
I want to repeat the lego particles’ “flow/lava” effect to make it similar to the example in this video with the timecode: https://youtu.be/WeL085yPRps?si=f1YbxjpKMxGSuWxM&t=65
I tried several things, some simulations, but I am a beginner and I tried to find some kind of guide on how to make particle effects, but now it’s time to call for your help.
I already have models of ego pieces, but I have no idea how I can put it all in geometry nodes and animate.
Please, help me

Please refer to the attached file of the download link below.
The video describes the geometry nodes in the attachment.

Hey, thank you. This is a good addon, but I’ve already tried it and watched the video. I don’t want to recreate the assembly of Lego pieces. I want to recreate the movement of a pile of Lego pieces, just like in the example in the video. It’s like having a pile of Legos and moving it on the plane with your hand.