digraph BuildFlow {
    // Graph settings
    rankdir=TB;
    compound=true;
    fontname="Helvetica";
    node [fontname="Helvetica", fontsize=11];
    edge [fontname="Helvetica", fontsize=10];

    // Title
    labelloc="t";
    label="Soleprint - Build Flow";
    fontsize=16;

    // Styling
    node [shape=box, style="rounded,filled"];

    // Source
    subgraph cluster_source {
        label="Source (spr/)";
        style=filled;
        color="#E3F2FD";
        fillcolor="#E3F2FD";

        soleprint_src [label="soleprint/\n(core entry points)", fillcolor="#BBDEFB"];
        artery_src [label="artery/\n(veins, shunts)", fillcolor="#BBDEFB"];
        atlas_src [label="atlas/\n(books)", fillcolor="#BBDEFB"];
        station_src [label="station/\n(tools, monitors)", fillcolor="#BBDEFB"];
    }

    // Config
    subgraph cluster_cfg {
        label="Room Configs (cfg/)";
        style=filled;
        color="#FFF8E1";
        fillcolor="#FFF8E1";

        cfg_standalone [label="cfg/standalone/\nconfig.json\ndata/", fillcolor="#FFECB3"];
        cfg_amar [label="cfg/amar/\nconfig.json\ndata/\ndocker-compose.yml\n...", fillcolor="#FFECB3"];
        cfg_other [label="cfg/<room>/\n...", fillcolor="#FFE082", style="rounded,filled,dashed"];
    }

    // Build tool
    build [label="build.py", fillcolor="#E1BEE7", shape=hexagon];

    // Commands
    subgraph cluster_cmds {
        label="Commands";
        style=filled;
        color="#F3E5F5";
        fillcolor="#F3E5F5";

        cmd1 [label="python build.py dev", fillcolor="#CE93D8"];
        cmd2 [label="python build.py dev --cfg amar", fillcolor="#CE93D8"];
        cmd3 [label="python build.py dev --all", fillcolor="#CE93D8"];
    }

    // Output
    subgraph cluster_gen {
        label="Generated Output (gen/)";
        style=filled;
        color="#E8F5E9";
        fillcolor="#E8F5E9";

        gen_standalone [label="gen/standalone/\n(base soleprint)", fillcolor="#C8E6C9"];
        gen_amar [label="gen/amar/\n(with amar config)", fillcolor="#C8E6C9"];
    }

    // Connections
    soleprint_src -> build;
    artery_src -> build;
    atlas_src -> build;
    station_src -> build;

    cfg_standalone -> build [style=dashed];
    cfg_amar -> build [style=dashed];

    build -> cmd1 [style=invis];
    build -> cmd2 [style=invis];
    build -> cmd3 [style=invis];

    cmd1 -> gen_standalone [label="copies + standalone config"];
    cmd2 -> gen_amar [label="copies + amar config"];
    cmd3 -> gen_standalone [style=dashed];
    cmd3 -> gen_amar [style=dashed];
}