D2

vars:{
  d2-config: {
    layout-engine: elk
  }
}

classes: {
  container: {
    icon.near: top-center
    label.near: outside-top-left
    style.stroke-width: 1
  }
  icon: {
    label.near: outside-top-left
    style.bold: false
    style.stroke-width: 1
  }
  libgit2: {
    style.stroke: orangered
    style.fill: papayawhip
    icon: https://icons.terrastruct.com/dev%2Fgit.svg
  }
  rust: {
    style.stroke: black
    style.fill: whitesmoke
    icon: https://icons.terrastruct.com/dev%2Frust.svg
  }
  git2: {
    style.stroke: black
    style.fill: whitesmoke
    icon: https://icons.terrastruct.com/dev%2Frust.svg
  }
  git-odb: {
    style.stroke: orangered
    style.fill: peachpuff
    icon: https://icons.terrastruct.com/essentials%2F117-database.svg
  }
  kademlia: {
    style.fill: thistle
    style.stroke: orchid
  }
  files: {
    style.stroke: darkkhaki
    style.fill: beige
    icon: https://icons.terrastruct.com/essentials%2F257-file.svg
  }
  tier: {
    style.italic: true
    style.bold: false
    style.stroke-width: 1
    label.near: outside-top-center
    grid-rows: 1
    vertical-gap: 15
    horizontal-gap: 20
  }
  stack: {
    horizontal-gap: 25
    vertical-gap: 15
    style.bold: true
    style.stroke-width: 2
  }
}

Server: {
  grid-rows: 3
  class: [stack]
  label: ""

  presentation: - Presentation - {
    class: [container; tier]
    
    Client: CLI Client {
      grid-columns: 1
      class: stack

      clap: {
        class: [rust; icon]
      }

      git2: {
        class: [git2; container]
        libgit2: {
          class: [libgit2; icon]
        }
      }
    }

    browser: Web Browser {
      class: [icon]
      icon: https://icons.terrastruct.com/dev%2Ffirefox.svg
    }
  }

  logic: - Business Logic - {
    class: [container; tier]

    axum: {
      class: [rust; container]

      tower-cgi: {
        class: [rust; container]
        git-http-backend: {
          class: [libgit2; icon]
        }
      }
      markdown-it: {
        class: [rust; icon]
      }
    }

    libp2p: {
      class: [rust; container]
      kademlia: Kademlia DHT {
        class: [kademlia]
      }
    }
  }

  storage: - Data - {
    class: [container; tier]
    git2: {
      class: [git2; container]
      libgit2: {
        class: [libgit2; container]
        git-odb: git ODB {
          class: [git-odb; icon]
        }
      }
    }

    redb: {
      class: [rust; container]

      dbfile: DB File {
        class: [files; icon]
      }
    }
  }
}