If you have a lot of xml data and need an UI that does complex operations that scream xpath it would be rather spectacular if it could be done without much of a

If you have a lot of xml data and need an UI that does complex operations that scream xpath it would be rather spectacular if it could be done without much of a back end, in the browser without js. I'm not good enough with XSLT to know if it is worth creating the problem that fits the solution.