How to deal with extensions?

[cemrehancavdar]

Hi,

I' working on a custom scoped style extension to use with JinjaX, can't use with jinja because child templates might get rendered after parent templates. I can use <style scoped> tags (kinda like vue) and it adds it to header.

The collected_css & collected_js inspired me to do it.
So could there be a JinjaX extension system?
For ex: that my scoped_style logic live with catalog and get rendered with catalog.render_assets()

Nested styles gist:
https://gist.github.com/cemrehancavdar/0ee83a9f8382e8e637e039107209e707