Download the example or clone the repo:

curl https://codeload.github.com/zeit/next.js/tar.gz/master | tar -xz --strip=2 next.js-master/examples/with-hashed-statics
cd with-hashed-statics

Install it and run:

npm install
npm run dev

Deploy it to the cloud with now (download)

now

This example shows how to import images, videos, etc. from /static and get the URL with a hash query allowing to use better cache without problems.

This example supports .svg, .png and .txt extensions, but it can be configured to support any possible extension changing the extensions array in the .babelrc file.