Fresh Sage 10.4.0 cannot load puclic/app.js

Hello,
I’m trying to upgrade from 10.3 to 10.4 for some security reasons, and I’m facing an issue : after the upgrade, all my assets (images, js) turned to be 404.
I did a clean sage 10.4 install to test it, and I have the same issue.
I think I changed everything needed to be changed on my bud.config.js file, such as :

.proxy('http://my-website.test')
.serve('http://127.0.0.1:3000')
.setPublicPath("/wp-content/themes/sage-10.4.0/public/")

But still facing this issue on yarn dev. Everything works on yarn build.
Where did I missed something?

I found a solution : seems you need to leave

.serve('http://0.0.0.0:3000')

But I don’t understand how it affect path of assets…