Vercel: is there any way to analyze the "render" function to fix size issues?

[cdcarson]

Using a serverless function on Vercel, deploys fail if my render function is over 50mb...

Error: The Serverless Function "render" is 56.88mb which exceeds the maximum size limit of 50mb. Learn More: https://vercel.link/serverless-function-size

I know this is my fault for having crap dependencies. For example, getting rid of canvas lopped 7mb off the built size and got me under the limit. But is there any way to analyze the "built" function to get rid of them rather than by trial and error? I tried building locally, but it's unclear to me where to look / what to analyze.

Thanks!