as explained on README documentation, you have to set generate: true in your nuxt.config.js file 😉

@NicoPennec What if I want it to not run at all during build? Ideally, I'd like to execute it when the first user requests it, and then use the cache version after that. Is that possible?

@juanvillegas if your are in SSR mode instead of Generate mode, this is the expected operation. But in Generated mode is technically impossible because the build is executed only once.