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Next.js - A fix for the 'Serializing big strings...' warning

Noticed this warning in the next run dev build output lately, seems to come with a longer build time too:

[webpack.cache.PackFileCacheStrategy]
Serializing big strings (242kiB) impacts deserialization performance
(consider using Buffer instead and decode when needed)

Solution: add this to your Next.js config file:

next.config.ts
  webpack: (config: { cache: { type: string } }) => {
    config.cache = {
      type: "memory",
    };

    return config;
  },