I did something similar in Django (ish) where I defined CSS, JS and Django templates in one file using special blocks then pre-processed them into vanilla templ

I did something similar in Django (ish) where I defined CSS, JS and Django templates in one file using special blocks then pre-processed them into vanilla templates, own JS and CSS. It worked well but was a sketch of what Tetra is doing. I certainly think there's a need for full stack the Django way (tm)