Projects which depend on `typebox` cannot be transpiled

[kade-robertson]

🐛 bug report

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• I have read the Contributing Guidelines for this project.
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  adheres to.
• I have searched the issue tracker for an issue that matches the one I want
  to file, without success.

Description of the problem

Projects which depend on typebox fail to compile and display the application when run in the Codesandbox client, but work as expected if you run the same project locally.

On codesandbox:

Locally, after downloading the project and running:

How has this issue affected you? What are you trying to accomplish?

Use a library which depends on data validation via typebox.

To Reproduce

1. Create a new project using the default Typescript template
2. Specify the latest parcel (2.16.1) and Typescript (5.9.3) versions in package.json.
3. Add typebox as a dependency
4. Use some Typebox code in the default index.ts
5. Observe the above issue

Link to sandbox: link

I seem to be able to reproduce this issue using the old, deprecated version of the Parcel v1 bundler that is in the default template locally. Presumably this means this was an issue fixed in v2, but that change has not been adopted in whatever Codesandbox is doing to bundle packages.

Your Environment

Software	Name/Version
Сodesandbox	main-00f2e83
Browser	142.0.7444.162
Operating System	MacOS Tahoe 26.1 (25B78)

[JamesACS]

Hey @kade-robertson ,

I've been looking into this and it seems Typebox has some circular dependencies. The Browser bundler is more restrictive than what you will be running locally, and as it's running locally has access to your file system to resolve the modules (which the browser environment doesn't).

We'd recommend using one of our VM Sandboxes (Devboxes) for Typebox projects.