Works like blockdiag web editor
Simple WSGI Apps (using Flask)
Hosted on Google Appengine
Limitations:
Author: @tk0miya <i.tkomiya at gmail.com>
$ git clone https://github.com/blockdiag/blockdiag_interactive_shell
$ cd blockdiag_interactive_shell
$ python bootstrap.py
$ bin/buildout
$ bin/dev_appserver app
And then, access http://localhost:8080/