Looks pretty good. Does it allow code execution and graph traversal in arbitrary ways or is it just restricted to static links based on documents? More concrete

Looks pretty good. Does it allow code execution and graph traversal in arbitrary ways or is it just restricted to static links based on documents? More concretely, can I have dynamic nodes in the graph that can perform arbitrary computation as documents are added and removed. Edit: Looked into it and doesn't seem like it. But interesting system nonetheless.