…As a sidenote, let me add a hint to a feature of the Swift Package Manager that might not be widely known:
Get a visual presentation of the package dependencies for a package via:
swift package show-dependencies --format dot >deps.gv-
dot -Tpng deps.gv >deps.png(dotbeing a command of Graphviz)
Maybe such an output could be integrated into DocC (maybe the SVG output of dot)?