If you do not already have bun installed, install bun here for different ways to install.

In your terminal, we create a new project and hop in.
bun init will create a package.json file for you.

mkdir new-project
cd new-project
bun init

Now we install Eleventy as a dev dependency.

bun add --dev @11ty/eleventy

We create a file to try out.

echo '<h1>Hello World!</h1>' > index.html

Compile and run Eleventy to generate a static file.

bunx @11ty/eleventy

You should be able to see a new directory, _site, that contains your generated file.

How about we start up a hot-reloading local web server?

bunx @11ty/eleventy --serve

Go to http://localhost:8080/ to see your file live!
You can make changes and save your file for your browser to auto-reload and see your new updates.

Learn more from the following resources.

• Get Started with Eleventy
• Bun Documentation