diff --git a/README.md b/README.md
index 4e14c87..dce3626 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ Vikunja is a self-hosted open-source to-do list application for all platforms.
 - CalDAV
 - Links  
 
-**Shipped version:** 0.18.2~ynh1
+**Shipped version:** 0.18.2~ynh2
 
 **Demo:** https://try.vikunja.io/login
 
diff --git a/README_fr.md b/README_fr.md
index eb5817d..4754089 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -22,7 +22,7 @@ Vikunja est une application de liste de tâches Open Source auto-hébergée pour
 - CalDAV
 - Links  
 
-**Version incluse :** 0.18.2~ynh1
+**Version incluse :** 0.18.2~ynh2
 
 **Démo :** https://try.vikunja.io/login
 
diff --git a/conf/amd64.src b/conf/amd64.src
new file mode 100644
index 0000000..833f81a
--- /dev/null
+++ b/conf/amd64.src
@@ -0,0 +1,7 @@
+SOURCE_URL=https://dl.vikunja.io/api/0.18.1/vikunja-v0.18.1-linux-amd64-full
+SOURCE_SUM=fd259ae3c717bea715e96d0806ac08f2bd462068277ab2b62ebee36fe946f0e2
+SOURCE_SUM_PRG=sha256sum
+SOURCE_IN_SUBDIR=false
+SOURCE_FORMAT=zip
+SOURCE_FILENAME=vikunja
+SOURCE_EXTRACT=true
diff --git a/conf/api.src b/conf/api.src
deleted file mode 100644
index d9f9321..0000000
--- a/conf/api.src
+++ /dev/null
@@ -1,7 +0,0 @@
-SOURCE_URL=https://dl.vikunja.io/api/0.18.1/vikunja-unstable-amd64.deb
-SOURCE_SUM=3bf5d1109727b37b461840e0bc8b60dc86dc569655551e6485c8dbe7b6de5ddb
-SOURCE_SUM_PRG=sha256sum
-SOURCE_FORMAT=deb
-SOURCE_IN_SUBDIR=true
-SOURCE_FILENAME=vikunja-unstable-amd64.deb
-SOURCE_EXTRACT=false
\ No newline at end of file
diff --git a/conf/arm64.src b/conf/arm64.src
new file mode 100644
index 0000000..3c1f538
--- /dev/null
+++ b/conf/arm64.src
@@ -0,0 +1,7 @@
+SOURCE_URL=https://dl.vikunja.io/api/0.18.1/vikunja-v0.18.1-linux-arm64-full
+SOURCE_SUM=c54c6d70b348c1697ff8519d522f2b1e3c58ffb4401ac1f4c2e729913b392a27
+SOURCE_SUM_PRG=sha256sum
+SOURCE_IN_SUBDIR=false
+SOURCE_FORMAT=zip
+SOURCE_FILENAME=vikunja
+SOURCE_EXTRACT=true
diff --git a/conf/armhf.src b/conf/armhf.src
new file mode 100644
index 0000000..70c5015
--- /dev/null
+++ b/conf/armhf.src
@@ -0,0 +1,7 @@
+SOURCE_URL=https://dl.vikunja.io/api/0.18.1/vikunja-v0.18.1-linux-arm-7-full
+SOURCE_SUM=79548e506538319f8aab07a5630c3c2032906b34386a83c26d1a6cfc9993b39c
+SOURCE_SUM_PRG=sha256sum
+SOURCE_IN_SUBDIR=false
+SOURCE_FORMAT=zip
+SOURCE_FILENAME=vikunja
+SOURCE_EXTRACT=true
diff --git a/conf/config.yml b/conf/config.yml
index 384ad0f..f80e62e 100644
--- a/conf/config.yml
+++ b/conf/config.yml
@@ -44,7 +44,7 @@ database:
   # Database type to use. Supported types are mysql, postgres and sqlite.
   type: "postgres"
   # Database user which is used to connect to the database.
-  user: "__DB_NAME__"
+  user: "__DB_USER__"
   # Database password
   password: "__DB_PWD__"
   # Database host
diff --git a/manifest.json b/manifest.json
index 14bc238..b0d1b4c 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Self-hosted To-Do list application",
         "fr": "Application de liste de tâches auto-hébergée"
     },
-    "version": "0.18.2~ynh1",
+    "version": "0.18.2~ynh2",
     "url": "https://vikunja.io/",
     "upstream": {
         "license": "GPL-3.0",
diff --git a/scripts/backup b/scripts/backup
index f131305..f876c34 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -36,8 +36,13 @@ ynh_print_info --message="Declaring files to be backed up..."
 # BACKUP THE APP MAIN DIR
 #=================================================
 
+# Frontend
 ynh_backup --src_path="$final_path"
+
+# Config
 ynh_backup --src_path="/etc/vikunja/config.yml"
+
+# Backend
 ynh_backup --src_path="/opt/vikunja"
 
 #=================================================
diff --git a/scripts/install b/scripts/install
index 71f5866..8b46920 100644
--- a/scripts/install
+++ b/scripts/install
@@ -25,6 +25,7 @@ path_url="/"
 is_public=$YNH_APP_ARG_IS_PUBLIC
 timezone="$(cat /etc/timezone)"
 secret=$(ynh_string_random --length=32)
+architecture=$YNH_ARCH
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -39,8 +40,6 @@ ynh_script_progression --message="Validating installation parameters..." --weigh
 final_path=/var/www/$app
 test ! -e "$final_path" || ynh_die --message="This path already contains a folder"
 
-mkdir -p "/etc/vikunja"
-
 # Register (book) web path
 ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
 
@@ -86,14 +85,15 @@ ynh_system_user_create --username=$app --home_dir=$final_path
 ynh_script_progression --message="Creating a PostgreSQL database..." --weight=2
 
 db_name=$(ynh_sanitize_dbid --db_name=$app)
+db_user=$db_name
 ynh_app_setting_set --app=$app --key=db_name --value=$db_name
 ynh_psql_test_if_first_run
-ynh_psql_setup_db --db_user=$db_name --db_name=$db_name
+ynh_psql_setup_db --db_user=$db_user --db_name=$db_name
 
 #=================================================
-# DOWNLOAD, CHECK AND UNPACK SOURCE
+# INSTALL FRONTEND
 #=================================================
-ynh_script_progression --message="Setting up source files..." --weight=1
+ynh_script_progression --message="Setting up frontend..." --weight=1
 
 ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 # Download, check integrity, uncompress and patch the source from app.src
@@ -106,13 +106,15 @@ chown -R $app:www-data "$final_path"
 #=================================================
 # INSTALL BACKEND
 #=================================================
-ynh_script_progression --message="Installing backend..." --weight=15
-
-tempdir="$(mktemp -d)"
-ynh_setup_source --dest_dir=$tempdir --source_id=api
-ynh_exec_warn_less dpkg -i $tempdir/vikunja-unstable-amd64.deb
+ynh_script_progression --message="Setting up backend..." --weight=1
 
+# Download, check integrity, uncompress and patch the source from app.src
+mkdir -p "/opt/vikunja"
 mkdir -p "/opt/vikunja/files"
+tempdir="$(mktemp -d)"
+ynh_setup_source --dest_dir=$tempdir --source_id="$architecture"
+back="$(find $tempdir -name "vikunja-*" \! -name "*.sha256")"
+cp "$back" "/opt/vikunja/vikunja"
 
 chmod +x "/opt/vikunja/vikunja"
 chown -R $app:www-data "/opt/vikunja/files"
@@ -130,8 +132,10 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Adding a configuration file..." --weight=1
 
+mkdir -p "/etc/vikunja"
 redis_db=$(ynh_redis_get_free_db)
 ynh_add_config --template="../conf/config.yml" --destination="/etc/vikunja/config.yml"
+
 chmod 400 "/etc/vikunja/config.yml"
 chown $app:$app "/etc/vikunja/config.yml"
 
@@ -155,7 +159,7 @@ yunohost service add $app --description="Self-hosted To-Do list application" --l
 ynh_script_progression --message="Starting a systemd service..." --weight=2
 
 # Start a systemd service
-ynh_systemd_action --service_name=$app --action=start --log_path=systemd --line_match="server started on"
+ynh_systemd_action --service_name=$app --action=start --log_path=systemd #--line_match="server started on"
 
 #=================================================
 # SETUP SSOWAT
diff --git a/scripts/remove b/scripts/remove
index c17afff..23189e4 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -58,7 +58,6 @@ ynh_script_progression --message="Removing dependencies..." --weight=1
 
 # Remove metapackage and its dependencies
 ynh_remove_app_dependencies
-dpkg --purge vikunja
 
 #=================================================
 # REMOVE THE REDIS DATABASE
@@ -74,7 +73,6 @@ ynh_script_progression --message="Removing $app main directory..." --weight=6
 
 # Remove the app directory securely
 ynh_secure_remove --file="$final_path"
-#ynh_secure_remove --file="/etc/vikunja"
 
 #=================================================
 # REMOVE NGINX CONFIGURATION
@@ -94,6 +92,14 @@ ynh_script_progression --message="Removing the dedicated system user..." --weigh
 # Delete a system user
 ynh_system_user_delete --username=$app
 
+#=================================================
+# REMOVE BACKEND
+#=================================================
+ynh_script_progression --message="Removing backend..." --weight=1
+
+# Delete /opt/vikunja
+ynh_secure_remove --file="/opt/vikunja"
+
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index a5f7ea0..90f666b 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -59,14 +59,16 @@ ynh_system_user_create --username=$app --home_dir="$final_path"
 #=================================================
 ynh_script_progression --message="Restoring $app main directory..." --weight=4
 
+# Frontend
 ynh_restore_file --origin_path="$final_path"
-
 chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
 
+# Config
 ynh_restore_file --origin_path="/etc/vikunja/config.yml"
 
+# Backend
 ynh_restore_file --origin_path="/opt/vikunja"
 chmod +x "/opt/vikunja/vikunja"
 chown -R $app:www-data "/opt/vikunja/files"
diff --git a/scripts/upgrade b/scripts/upgrade
index 9d1a724..8ad7751 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -25,6 +25,7 @@ db_user=$db_name
 db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
 timezone="$(cat /etc/timezone)"
 secret=$(ynh_string_random --length=32)
+architecture=$YNH_ARCH
 
 set_motd=$(ynh_app_setting_get --app=$app --key=set_motd)
 enable_registration=$(ynh_app_setting_get --app=$app --key=enable_registration)
@@ -99,19 +100,18 @@ ynh_system_user_create --username=$app --home_dir="$final_path"
 
 if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
-	ynh_script_progression --message="Installing backend..." --weight=5
-
-	tempdir="$(mktemp -d)"
-	ynh_setup_source --dest_dir=$tempdir --source_id=api
-	ynh_exec_warn_less N | dpkg -i $tempdir/vikunja-unstable-amd64.deb
-
 	ynh_script_progression --message="Upgrading source files..." --weight=5
 
 	# Download, check integrity, uncompress and patch the source from app.src
+	# Frontend
 	ynh_setup_source --dest_dir="$final_path" --source_id="front" --keep="/etc/vikunja/config.yml"
-
+	
+	# Backend
 	mkdir -p "/opt/vikunja/files"
-
+	tempdir="$(mktemp -d)"
+	ynh_setup_source --dest_dir=$tempdir --source_id="$architecture"
+	back="$(find $tempdir -name "vikunja-*" \! -name "*.sha256")"
+	cp "$back" "/opt/vikunja/vikunja"
 fi
 
 chmod 750 "$final_path"
@@ -120,16 +120,6 @@ chown -R $app:www-data "$final_path"
 chmod +x "/opt/vikunja/vikunja"
 chown -R $app:www-data "/opt/vikunja/files"
 
-#=================================================
-# ADD A CONFIGURATION
-#=================================================
-#ynh_script_progression --message="Adding a configuration file..." --weight=1
-
-# redis_db=$(ynh_redis_get_free_db)
-# ynh_add_config --template="../conf/config.yml" --destination="/etc/vikunja/config.yml"
-
-#chmod 600 "/etc/vikunja/config.yml"
-
 #=================================================
 # NGINX CONFIGURATION
 #=================================================