I normally turn to ringojs[1] for "off-browser javascript" with Java integration. It's been around nearly 20 years[2] now! Is this a new take on the same concept? The examples seem web application focused, but there's not even a mention of JSGI[3] or whether it was even considered.

[1]: http://ringojs.org/

[2]: http://helma.org/

[3]: https://www.sitepen.com/blog/2010/01/19/commonjsjsgi-the-eme...