1. Start a server on port 3000 from current directory with `php -S localhost:3000` or `python -m SimpleHTTPServer 3000` 2. Copy the file cors_server.py into $HOME/.oblie 3. Execute python cors_server.py form $HOME/.oblie Visit http://localhost:9000/arguments.json to make sure the data can be accessed. ###. 4. Vist http://localhost:3000 to access the argument tree.