I am currently working on a fork
https://github.com/tostein/docker-ubuntu-vnc-desktop/tree/configureable_path

where i added a prefix path to the whole application, which can be set by an environment variable.
Furthermore i have the intent (which works already) to use this as a base image from which application images can be derived. This application image has the option to change this prefix path (leading to a rebuilt of the internal node.js build). The path prefix path renaming works at container build time or even at container runtime.

I wanted to ask if this is in interest to you, and if you would like to have it merged into the main repository (maybe on a seperate branch or the master?)