I have made available an alpha version of a NodeJS based alternative to mod_plsql and ORDS.
The current implementation is very far from production state and also does not yet offer all the features of the Oracle tools but already works quite well in a development and test environment.
I would be interested to get some feedback and see if there is interest in such a solution.
You can find web_plsql on npm https://www.npmjs.com/package/web_plsql