The working directory when running Nuxt seems to be inconsistent. While nuxt dev runs at project root, nuxt preview runs in .output subpath. At the same time though, the nuxt preview doc says that for prod you should run node .output/server/index.mjs, which again runs at project root. nuxt preview command itself recommends to run node server/index.mjs, which is inside .output (and inconsistent with the above-linked docs).

For me it feels right to always run it at project root and to have a data path for uploads and stuff there.

I'm thinking if it makes sense to implement the project with having nuxt preview in mind or just ignoring the special behavior.