@startuml

title Homepage

cloud web

node nodejs {
    TCP -right- [express]
}

package data {
    component index [
        index.ejs
        style.css
        ...
    ]
}

database list

web -down-> TCP : 1. root
express -down-> index : 2
index --> express : 3
list -left-> express : 3
express -up-> web : 4. html

@enduml