.
├── code                     # Code that developed to stable version
|   ├── db_generator         # The db_generator outer tools
|   └── parameter_files      # Seed files
├── data                     # Saves huge filter rulesets. It is ignored in git
|   ├── fw_filters
|   ├── acl_filters
|   └── ipc_filters
├── developing               # Developing codes (usually `ipynb` files)
└── script                   # Shell scripts and their log