diff --git a/manifest.toml b/manifest.toml
index 18d0b4f..181e616 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -41,6 +41,13 @@ ram.runtime = "50M"
     default = "visitors"
 
  [resources]
+
+    [resources.sources]
+
+      [resources.sources.main]
+        url = "https://codeload.github.com/terraforming-mars/terraforming-mars/tar.gz/78e5e5d0433e4d1632639ea7da1a1993672bd82a"
+        sha256 = "b41cfe80334495a4653bc3933298597c232474c309c5993e388068e33d7f13ce"
+        autoupdate.strategy = "latest_github_tag"
    
     [resources.system_user]
 
diff --git a/scripts/install b/scripts/install
index e168d09..128606d 100755
--- a/scripts/install
+++ b/scripts/install
@@ -19,6 +19,18 @@ ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
 # Upgrade NPM
 ynh_npm install --global npm@6.14.18
 
+#=================================================
+# DOWNLOAD, CHECK AND UNPACK SOURCE
+#=================================================
+ynh_script_progression --message="Setting up source files..." --weight=1
+
+# Download, check integrity, uncompress and patch the source from app.src
+ynh_setup_source --dest_dir="$install_dir"
+
+chmod 750 "$install_dir"
+chmod -R o-rwx "$install_dir"
+chown -R $app:www-data "$install_dir"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -34,12 +46,6 @@ ynh_add_nginx_config
 # BUILD APP
 #=================================================
 
-cd $install_dir
-ynh_exec_warn_less git clone https://github.com/terraforming-mars/terraforming-mars.git
-
-cd $install_dir/terraforming-mars
-ynh_exec_warn_less git checkout $TM_version
-
 pushd $install_dir/terraforming-mars
     ynh_use_nodejs