Pretty much the same here. I have tried Elixir/Phoenix and found it worthwhile. Just need to keep using it to be more proficient with it.

For the front-end, I've pretty much switched over to Vue either using only local state or vue-stash. It's much lighter weight for smaller projects and I like the single file components with default separation of layout and code.

Can you share your project address here? So we can do code review together