anchor.diff:  
   With this definition, when we will need some flags or some ports, we will add the new stuff in our interface and the client will have to implement them.
   
  -NOTE: Take care of the first line if you don't use SCSS but a `main.css` file
  +NOTE: Take care of the first line if you don't use SCSS but a *main.css* file
   
   === Build with Parcel
   
  -Let's create a build script in our `package.json` file:
  +Let's create a build script in our *package.json* file:
   ```json
   "elm:build": "parcel build packages/elm-app/app/index.ts -d packages/elm-app/dist --out-file elm-app.js --no-cache",
   ```
   
  -This script will build our application in a file `elm-app.js` (and `elm-app.css`) and put it in the folder `packages/elm-app/dist` (the one we added in our `.gitignore`) 
  +This script will build our application in a file *elm-app.js* (and *elm-app.css*) and put it in the folder *packages/elm-app/dist* (the one we added in our *.gitignore*) 
   
   
   We can test our script
  
positive.code: }
  ```
  
  Now each time we will change the definition of the type `Flag` or the type `Port` inside our Elm application, we will be sure to know if we have some stuff to fix in the Meteor client 💪
  
  == Live Reload
  
  Because we don't want to build manually our Elm application each time we make a change, we will setup the live reload
  
  We will install some packages to help to run Parcel in a watch mode and Meteor
  ```shell
  #under meteor-elm-app
  meteor npm i -D concurrently wait-on rimraf
  ```
  
  Then we will create an new script in our `package.json` file:
  
  ```json
  "elm:watch": "parcel watch packages/elm-app/app/index.ts -d packages/elm-app/dist --out-file elm-app.js",
  ```
  
  With `elm:watch`, parcel will rebuild our app each time we make a change in Elm, TS or SCSS files under the folder packages/elm-app/app.
  
  And because `parcel watch` create a `.cache` folder, we will add it to the `.gitignore` file.
  The content of your `.gitignore` should be like this:
  
  ```
  node_modules/
  
negative.code: 4 directories, 7 files
  ```
  
  We will update the *package.json* file to define the main modules in our Meteor app:
  
  ```json
  "meteor": {
  