anchor.diff:  
   === Checkpoint
   
  -Lets check if everything is OK before starting with Elm.
  +Lets check if everything is OK before starting with {url-elm}[Elm].
   Start your *meteor* server: 
   ```shell
   # under meteor-elm-app
  
positive.code: 
  === Link ports to Meteor.methods and subscriptions
  
  We have some piece of code in Elm and some piece of code in the server side.
  Now we need to link them together, and we will do that in the file *client/main.ts*
  
  We will need to import our TodosCollection and the {url-meteor}[Meteor] Tracker
  
negative.code: 
  === Create a Meteor package
  
  This {url-meteor}[Meteor] package will contain our {url-elm}[Elm] application and we will use this package inside the {url-meteor}[Meteor] application.
  
  We use a Package because it allows us to isolate our {url-elm}[Elm] application from the rest of the {url-meteor}[Meteor] context.
  It is also really useful if we want to remove our {url-elm}[Elm] application or if one we don't want to use Meteor {url-meteor}[Meteor] anymore.
  
  Let's start by creating some folders:
  ```shell
  mkdir -p packages/elm-app/{app,dist}
  ```
  
  The *app* folder will contain the sources of our {url-elm}[Elm] application ({url-elm}[Elm], TS and CSS files).
  The *dist* folder will contain the result of the build made by {url-parcel}[Parcel].
  
  Because we will build with {url-parcel}[Parcel] and not with {url-meteor}[Meteor], we will create a new file at the root of the *meteor-elm-app* called *.meteorignore*
  