D3 blocks can be viewed by replacing gist.github.com or bl.ocks.org with blocks.roadtolarissa.com, e.g. for your link : https://blocks.roadtolarissa.com/AndreaS

D3 blocks can be viewed by replacing gist.github.com or bl.ocks.org with blocks.roadtolarissa.com, e.g. for your link : https://blocks.roadtolarissa.com/AndreaSimeone/1e9ed38b46b95b7848c7140a6e45e6c3 https://blocks.roadtolarissa.com/AndreaSimeone/1e9ed38b46b95... (the home page https://roadtolarissa.com/ https://roadtolarissa.com/ has a collection of visualisations, with an RSS link for updates, and the author posts some here as 1wheel). The simulation playback in your link "Force Graph Trails" would be useful when trying to refine and balance the forces in a force graph; the small amount I've done felt like juggling parameters, searching in a space with too many dimensions.