I created sample Django app which has front-end code and back-end code and build them separately.
I am tired to build front-end source code in back-end development environment. I know there are many back-end modules which build front-end source code in back-end build process.
It's easy to use at first but those module use node module to build front-end source code so...
If you want to use one option which the node module has but back-end module do not use latest node module so you can not use the option.
If you have problem of building front-end source code you have to investigate both side of codes. It might be front-end build process problem or back-end one.
If you find new node module to build front-end source code you have to search or create plugin(library) to use inside back-end build process.
You know front-end build tools are written by node mainly and there are many reference to explain or to use it. You need not to create plugin to use them inside back-end.
I created sample Django app which has front-end code and back-end code and build them separately to explain this philosophies. I will be glad to agree with me. :)