embedding fuseki-ui

[phtyson]

I want to embed fuseki-ui in a larger single-page app built with older technologies (backbone, handlebars). I'm not familiar with Vue or any of the stack used for fuseki-ui, so any tips or pointers are welcome.
The first problem is repointing the fuseki-ui url to a proxy servlet (for consistent access control). I can see where this is set in the code, but apparently is not a configurable app property?
Other requirements include per-dataset privileges for view, query, add, delete, based on user's privileges in the larger app.
And, of lesser importance, reskinning the ui to fit with the containing app.