Vercel Build Cache for Hugo

Hi all,

I’m currently developing a site in Hugo and deploying via GitHub to Vercel.
Today I wanted to enable the image processor within Hugo.
This seems to work fine both locally and on Vercel.

However it seems Vercel is not using Hugo’s resources folder as a cache.
I was reading this page: Troubleshooting Build Errors
Is it correct to assume since Hugo is not listed there that this is correct?

If so is there any way to instruct Vercel to still cache the resources folder since this is wasting both my time but more importantly Vercel’s workers. Since now builds take 40 seconds (I know not a lot) but locally with the resources folder updates are generated within milliseconds.

I searched all docs and tried to see if there was a way within the vercel.json but came up blank.

Kind regards,
Glenn