Got it working:
This is a working config:
version: "4.0.0-beta.1",
default: [
args: ~w(
--input=assets/css/app.css
--output=./priv/static/assets/app.css
),
cd: Path.expand("../", __DIR__)
]
diff:
As you can see, the difference is to not cd into assets. Tailwind 4 does source detection differently, but you can still configure it: Tailwind CSS v4.0 Beta - Tailwind CSS, so the old configuration can probably be kept with correct source detection, but I didn’t bother with that.
