Old MUDs come to mind, and seems like a modern take on their automappers would be something like Mudlet's https://wiki.mudlet.org/w/Manual:Mapper https://wiki.m

Old MUDs come to mind, and seems like a modern take on their automappers would be something like Mudlet's https://wiki.mudlet.org/w/Manual:Mapper https://wiki.mudlet.org/w/Manual:Mapper, which has a verbose but human readable XML format? https://wiki.mudlet.org/w/Manual:Mapper https://wiki.mudlet.org/w/Manual:Mapper https://forums.mudlet.org/viewtopic.php?t=22957 https://forums.mudlet.org/viewtopic.php?t=22957 Not quite as terse as your Mermaid-like syntax, unfortunately. Also, in Mermaid, can't you specify left/right top/bottom, etc.? https://mermaid.js.org/syntax/flowchart.html#direction-in-subgraphs https://mermaid.js.org/syntax/flowchart.html#direction-in-su...