I don't know this is the best way to organize modules in Julia.
$ julia main.jl
$ tree (newenv)
.
├── README
├── aaa
│ ├── aaa.jl
│ └── speak.jl
├── hogehoge
│ ├── HogehogeModule.jl
│ ├── hogehoge.jl
│ └── hogehoge2.jl
├── main.jl
└── talk
├── TalkModule.jl
├── talk.jl
└── talk2.jl
3 directories, 10 files