Foundry VTT v14+

Graft packages your changes to somebody else’s compendium content as a diff and rebuilds the result on the reader’s machine. A graft module contains only pointers and patches, never the content it builds on, so you can publish a reskinned monster, a modified adventure, or a scene built on a premium map without redistributing anyone’s work.

Full documentation at github.com/wizzlethorpe/graft.

Graft is free and open source. Paste this into Foundry’s Install Module dialog:

https://github.com/wizzlethorpe/graft/releases/latest/download/module.json