"I see in 3D" (iCn3D) Structure Viewer is not only a web-based 3D viewer, but also a structure analysis tool interactively or in the batch mode using NodeJS scripts based on the npm package icn3d.
During onion-v3 switch crisis, we needed a fork that worked with onion-v3 and didn't depend on trust to one or two people. This fork started from fulfilling that mission, implementing minimal changes ...