Expression developer sandbox is in a very alpha state. Don't even try to use it :-) for now.
prerequisite : you have to install NodeJS
git clone [email protected]:webdoc/urturn-sandbox.git
cd urturn-sandbox
npm install
sudo npm link
Start it by getting to you expressions project or a specific expression folder and type
urturn-sandbox start
Then visit http://localhost:3333
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