Wrangler/CF Deploy: Failed to load external module 'pg'

[vanshb03]

What versions & operating system are you using?

System:
OS: Linux 6.6 Ubuntu 24.04.3 LTS 24.04.3 LTS (Noble Numbat)
CPU: (16) x64 AMD Ryzen 7 9700X 8-Core Processor
Memory: 11.30 GB / 15.43 GB
Container: Yes
Shell: 5.2.21 - /bin/bash
Binaries:
Node: 24.13.0 - /run/user/1000/fnm_multishells/777_1772461841566/bin/node
npm: 11.10.1 - /run/user/1000/fnm_multishells/777_1772461841566/bin/npm
pnpm: 10.23.0 - /mnt/c/Users/{username}/AppData/Roaming/npm/pnpm
npmPackages:
wrangler: ^4.69.0 => 4.69.0

Please provide a link to a minimal reproduction

https://github.com/vanshb03/cf-pg-error

Describe the Bug

Unnamed error on build on Cloudflare from repo. Image attached below:

While deployed from local Wrangler, visiting the site shows a "No such module" error for pg when using Hyperdrive + Supabase, despite a successful deployment via Wrangler. Also opened this on the OpenNext repo since the pg issue initially appeared to be an issue there: opennextjs/opennextjs-cloudflare#1153

Please provide any relevant error logs

https://github.com/vanshb03/cf-pg-error/blob/main/cf-pg-error.production.a56de7e2-74fb-4e3d-9bd4-c13a8adfd995.build.log

Build log for the image attached above

[jamesopstad]

Closing this as the OpenNext issue will be the best place to follow up.