In addition to start.jbpm.org there is now an command-line way to generate your jBPM Business Applications, namely with the jba-cli Node package.
|jba-cli package on npmjs.com|
|Sample CLI usage|
If you have Node installed locally you can install and run this package with:
npm install jba-cli -g
This allows your to build your jBPM Business app zip file without having to go through the browser.
To contribute to this little cool project feel free to clone it and create pull requests from its github repo.
Here is youtube video showing how to install and use the jba-cli command line interface to generate your app: