Build and chunk files

[Man4x]

First, thank you for all of this.
I'm using this module for customizing the Hyva Reach Checkout and since it runs great in local dev mode , I "npm run build" to test it online. A new react-checkout.js and a bunch of chunks.js were created then, but as the react-checkout.js is perfectly available in the Magento static directory, chunks files loading lead to 404s.
As far as I understood, the react-checkout.js file is loaded asynchronously from the block template but inside it, chunks are expected to be in the ../../view/frontend/web/js/[name].chunk.js directory, as set in the config-override.js
Is there any simple way to fix this ?