anchor.diff:  * *ImageMagick*
   * *Chrome* browser and https://sites.google.com/a/chromium.org/chromedriver/[chromedriver].
   
  -We're starting with an Ubuntu 20.04 LTS. This is an opinionated guide, so you're free to use the technology that you are most comfortable. If you have any doubts and you're blocked you can go and ask on https://matrix.to/#/#decidimdevs:matrix.org[our Matrix.org chat room for developers].
  +We're starting with an Ubuntu 20.04.2 LTS. This is an opinionated guide, so you're free to use the technology that you are most comfortable. If you have any doubts and you're blocked you can go and ask on https://matrix.to/#/#decidimdevs:matrix.org[our Matrix.org chat room for developers].
   
   We recommend to have at least some basic proficiency in Ruby on Rails (a good starting point is http://guides.rubyonrails.org/getting_started.html[Getting Started with Ruby on Rails]) and have some knowledge on how gems work.
   
  -In this guide, we'll see how to install rbenv, PostgreSQL and, Decidim, and how to configure everything together.
  +In this guide, we'll see how to install rbenv, PostgreSQL, Node.js and, Decidim, and how to configure everything together.
   
   == 1. Installing rbenv
   
  
positive.code: 
  This will also create some default data so you can start testing the app, with an administrator account with email admin@example.org and password `decidim123456`
  
  == 6. Start your web server
  
  You can now start your server!
  
  
negative.code: 
  You need to change the password (in this example is "thepassword") and save it somewhere to configure it later with the application.
  
  == 3. Installing Node.js
  
  An important component for Decidim is Node.js and Yarn. With this commands you will install them:
  
  [source,bash]
  ----
  curl -sL https://deb.nodesource.com/setup_16.x | sudo -E bash -
  sudo apt-get install -y nodejs
  curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor | sudo tee /usr/share/keyrings/yarnkey.gpg >/dev/null
  echo "deb [signed-by=/usr/share/keyrings/yarnkey.gpg] https://dl.yarnpkg.com/debian stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
  sudo apt-get update && sudo apt-get install -y yarn
  ----
  
  == 4. Installing Decidim
  
  Next, we need to install the `decidim` gem with its dependencies:
  
  [source,bash]
  ----
  sudo apt install -y libicu-dev imagemagick
  gem install decidim
  ----
  
  