Create a DRF Backend
Take care of authentication at both ends
Build your SPA in a modern JS framework.
The good is modularity, maintainability, better UX controls, super interactive UIs, and the likes, the bad is you need to write more code. In simple cases the good old django templates is good enough. Is anyone still doing them? I love the organised new age FE framework code, the imports that come with ES6.
Is anyone still doing monolith with django template and ES6. If so, mind sharing your workflow, and libraries?