Describe the feature

tsup already integrated the --metafile flag to tell esbuild to produce some metadata about the build in JSON format.

It is great for analyzing with bundle-buddy.com. To see support for this in unbuild would be great!

More Info:

• https://esbuild.github.io/api/#metafile
• https://esbuild.github.io/api/#analyze

Additional information

• Would you be willing to help implement this feature?