crystal command to only run our code.crystal command is pretty useful and does lot more than that. (check crystal --helpfor more)crystal helped us create a new project. Let’s see what it did for us.shard.yml for dependency management.src and spec folders to put our code and tests(ssh..we’ll talk about it soon) in it.shards. shards is like bundler and shard.yml is like Gemfile.shard.yml.shard.yml and it contains the minimal necessary information about our project. Those arename specifies the name of the projectversion specifies the version of the project. Crystal itself uses semver for version management so it’s a good convention for you to follow.authors section specifies the authors of the project. By default this is taken from your global git configuration.crystal specifies the version of Crystal that the project is using.license specifies the type of your project license. By default this is MIT.shard.yml? Well we can use this file to add external libraries(we call it dependency) and manage them without even worrying about any folders / paths e.g.. Sweet isn’t it?shards let’s add Kemal to our shard.yml and build a simple web application :)shard.yml. First we need to add Kemal as a dependency to our project. We do this by includingKemal to our project. First, we need to install it.Kemal in our project. Open up src/sample.crrequire to access Kemal in our program.localhost:3000 and see it in action!shards :)