Summary

When schema paths come from module hooks and resolve under node_modules/.cache/nuxt/.nuxt/..., the generated @nuxthub/db/schema.mjs can end up as:

export * from "/abs/path/node_modules/.cache/nuxt/.nuxt/better-auth/schema.postgresql.ts"

This absolute cache path is then copied into build output and can fail at runtime (ERR_MODULE_NOT_FOUND) when that cache path is unavailable in deployment environments (e.g. Vercel).

Why this happens

buildDatabaseSchema() currently uses skipNodeModulesBundle: true, so schema sources under node_modules are left as external exports instead of being bundled.

Observed failure

Runtime error points to a missing file like:

• .../node_modules/.cache/nuxt/.nuxt/better-auth/schema.postgresql.ts

Related

• Better Auth report: ERR_MODULE_NOT_FOUND: better-auth/schema.postgresql.ts not resolved on Vercel nuxt-modules/better-auth#100

I can provide a minimal repro + patched repro pair (nuxthub-{issue} / nuxthub-{issue}-fix) in a follow-up comment/PR.