digraph cfg_gen_flow {
    bgcolor="#0a0a0a"
    rankdir=LR
    fontname="Helvetica"
    node [fontname="Helvetica" fontsize=11 style=filled color="#333" fontcolor="#e5e5e5" shape=box]
    edge [fontname="Helvetica" fontsize=9 fontcolor="#a3a3a3" color="#d4a574"]

    label="Build Flow — cfg/ to gen/"
    labelloc=t
    fontsize=14
    fontcolor="#d4a574"

    // Source
    subgraph cluster_source {
        label="Source (committed)"
        style=dashed
        color="#333"
        fontcolor="#666"

        core [label="soleprint/\ncore framework" fillcolor="#1a1a1a"]
        cfg [label="cfg/<room>/\nroom config" fillcolor="#1a1a1a"]
    }

    // Build
    build [label="build.py\n--cfg <room>" fillcolor="#1a1a1a" color="#d4a574" shape=component]

    // Output
    subgraph cluster_output {
        label="Output (generated, gitignored)"
        style=dashed
        color="#333"
        fontcolor="#666"

        gen_spr [label="gen/<room>/soleprint/\ncore + room merged" fillcolor="#1a1a1a"]
        gen_app [label="gen/<room>/<app>/\ncloned repos" fillcolor="#1a1a1a"]
        gen_link [label="gen/<room>/link/\nDB bridge" fillcolor="#1a1a1a"]
    }

    // Run
    docker [label="docker compose up" fillcolor="#1a1a1a" shape=component]

    // Flow
    core -> build
    cfg -> build
    build -> gen_spr
    build -> gen_app [style=dashed label="if managed"]
    build -> gen_link [style=dashed label="if managed"]
    gen_spr -> docker
}