diff --git a/conf/nginx.conf b/conf/nginx.conf
index e693a5d..860493d 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,18 +1,9 @@
 #sub_path_only rewrite ^__PATH__$ __PATH__/ permanent;
 location __PATH__/ {
 
-  # Path to source
-  alias __INSTALL_DIR__/;
-  
-  try_files $uri $uri/ /;
-
-  index  index.html index.htm;
+  proxy_pass http://127.0.0.1:__PORT__;
+  client_max_body_size 20M;
 
   # Include SSOWAT user panel.
   include conf.d/yunohost_panel.conf.inc;
 }
-
-location ~* ^/(api|dav|\.well-known)/ {
-  proxy_pass http://127.0.0.1:__PORT__;
-  client_max_body_size 20M;
-}
diff --git a/manifest.toml b/manifest.toml
index 54587c6..510d1df 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -1,3 +1,5 @@
+#:schema https://raw.githubusercontent.com/YunoHost/apps/master/schemas/manifest.v2.schema.json
+
 packaging_format = 2
 
 id = "vikunja"
@@ -5,7 +7,7 @@ name = "Vikunja"
 description.en = "Self-hosted To-Do list application"
 description.fr = "Application de liste de tâches auto-hébergée"
 
-version = "0.22.1~ynh1"
+version = "0.23.0~ynh1"
 
 maintainers = []
 
@@ -49,30 +51,23 @@ ram.runtime = "50M"
 [resources]
 
     [resources.sources]
-        [resources.sources.back]
-        arm64.url = "https://dl.vikunja.io/api/0.22.1/vikunja-v0.22.1-linux-arm64-full.zip"
+        [resources.sources.main]
+        arm64.url = "https://dl.vikunja.io/vikunja/0.23.0/vikunja-v0.23.0-linux-arm64-full.zip"
         arm64.sha256 = "50a1670c0fde858c1cd7bc72cc670c4011a688a20b07ee62fab11bcca3eab01e"
-        amd64.url = "https://dl.vikunja.io/api/0.22.1/vikunja-v0.22.1-linux-amd64-full.zip"
+        amd64.url = "https://dl.vikunja.io/vikunja/0.23.0/vikunja-v0.23.0-linux-amd64-full.zip"
         amd64.sha256 = "c3e21ca5ccace3f9eaa423bab8c1cfc3e7de15d5c593db0aa6e4dbd9883469e6"
-        armhf.url = "https://dl.vikunja.io/api/0.22.1/vikunja-v0.22.1-linux-arm-7-full.zip"
+        armhf.url = "https://dl.vikunja.io/vikunja/0.23.0/vikunja-v0.23.0-linux-arm-7-full.zip"
         armhf.sha256 = "72f50404df57d75060bdd0d162e12cba20269a0def7b38993e1b61c4cf3d69d2"
-        i386.url = "https://dl.vikunja.io/api/0.22.1/vikunja-v0.22.1-linux-386-full.zip"
+        i386.url = "https://dl.vikunja.io/vikunja/0.23.0/vikunja-v0.23.0-linux-386-full.zip"
         i386.sha256 = "de1e271b6d3fe6024b790b95c1bf946a415598b31192638ef85589cd2c35f996"
         in_subdir = false
         format = "zip"
-        autoupdate.upstream = "https://kolaente.dev/vikunja/vikunja"
+
         autoupdate.strategy = "latest_gitea_release"
         autoupdate.asset.amd64 = "tarball"
         autoupdate.asset.i386 = "tarball"
         autoupdate.asset.arm64 = "tarball"
         autoupdate.asset.armhf = "tarball"
-        
-        [resources.sources.front]
-        url = "https://dl.vikunja.io/frontend/vikunja-frontend-0.22.1.zip"
-        sha256 = "8e4145eacb9c2d95a95a43dca2f4dd0fd30ec8934f4562017caf77f3c5f9a277"
-        in_subdir = false
-        format = "zip"
-
 
     [resources.ports]
 
diff --git a/scripts/backup b/scripts/backup
index 64e1a14..a9ec4d0 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -21,9 +21,6 @@ ynh_print_info --message="Declaring files to be backed up..."
 # Frontend
 ynh_backup --src_path="$install_dir"
 
-# Backend
-ynh_backup --src_path="$backend_path"
-
 #=================================================
 # BACKUP THE NGINX CONFIGURATION
 #=================================================
diff --git a/scripts/change_url b/scripts/change_url
index a639a04..b3ee07d 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -40,9 +40,9 @@ ynh_script_progression --message="Adding a configuration file..." --weight=1
 
 domain="$new_domain"
 path="$new_path"
-ynh_add_config --template="../conf/config.yml" --destination="$backend_path/config.yml"
+ynh_add_config --template="../conf/config.yml" --destination="$install_dir/config.yml"
 
-chmod 600 "$backend_path/config.yml"
+chmod 600 "$install_dir/config.yml"
 
 #=================================================
 # GENERIC FINALISATION
diff --git a/scripts/install b/scripts/install
index 30293fd..40c0991 100644
--- a/scripts/install
+++ b/scripts/install
@@ -16,7 +16,6 @@ source /usr/share/yunohost/helpers
 timezone="$(cat /etc/timezone)"
 secret=$(ynh_string_random --length=32)
 redis_db=$(ynh_redis_get_free_db)
-backend_path=/opt/$app
 
 set_motd=""
 enable_registration="true"
@@ -32,7 +31,6 @@ maxitemsperpage=50
 # STORE SETTINGS FROM MANIFEST
 #=================================================
 
-ynh_app_setting_set --app=$app --key=backend_path --value=$backend_path
 ynh_app_setting_set --app=$app --key=set_motd --value=$set_motd
 ynh_app_setting_set --app=$app --key=enable_registration --value=$enable_registration
 ynh_app_setting_set --app=$app --key=enable_linksharing --value=$enable_linksharing
@@ -44,31 +42,29 @@ ynh_app_setting_set --app=$app --key=maxavatarsize --value=$maxavatarsize
 ynh_app_setting_set --app=$app --key=maxitemsperpage --value=$maxitemsperpage
 
 #=================================================
-# INSTALL FRONTEND
+# INSTALL BACKEND
 #=================================================
-ynh_script_progression --message="Setting up frontend..." --weight=1
+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="$install_dir" --source_id="front"
+ynh_setup_source --dest_dir="$install_dir"
+executable="$(find $tempdir -name "vikunja-*" \! -name "*.sha256")"
+ln -s "$executable" "$install_dir/vikunja"
+
+chmod +x "$install_dir/vikunja"
 
 chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"
 
 #=================================================
-# INSTALL BACKEND
+# ADD A CONFIGURATION
 #=================================================
-ynh_script_progression --message="Setting up backend..." --weight=1
+ynh_script_progression --message="Adding a configuration file..." --weight=1
 
-# Download, check integrity, uncompress and patch the source from app.src
-mkdir -p "$backend_path"
-mkdir -p "$backend_path/files"
-tempdir="$(mktemp -d)"
-ynh_setup_source --dest_dir=$tempdir --source_id="back"
-back="$(find $tempdir -name "vikunja-*" \! -name "*.sha256")"
-cp "$back" "$backend_path/vikunja"
+ynh_add_config --template="config.yml" --destination="$install_dir/config.yml"
 
-chmod +x "$backend_path/vikunja"
-chown -R $app:www-data "$backend_path/files"
+chmod 400 "$install_dir/config.yml"
+chown "$app:$app" "$install_dir/config.yml"
 
 #=================================================
 # SYSTEM CONFIGURATION
@@ -81,23 +77,13 @@ ynh_add_systemd_config
 
 yunohost service add $app --description="Self-hosted To-Do list application" --log="/var/log/$app/$app.log"
 
-#=================================================
-# ADD A CONFIGURATION
-#=================================================
-ynh_script_progression --message="Adding a configuration file..." --weight=1
-
-ynh_add_config --template="config.yml" --destination="$backend_path/config.yml"
-
-chmod 400 "$backend_path/config.yml"
-chown $app:$app "$backend_path/config.yml"
-
 #=================================================
 # START SYSTEMD SERVICE
 #=================================================
-ynh_script_progression --message="Starting a systemd service..." --weight=2
+ynh_script_progression --message="Starting $app's 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"
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/remove b/scripts/remove
index 0e09476..e63c3ec 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -12,7 +12,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 # REMOVE SYSTEM CONFIGURATIONS
 #=================================================
-# REMOVE SYSTEMD SERVICE 
+# REMOVE SYSTEMD SERVICE
 #=================================================
 ynh_script_progression --message="Removing system configurations related to $app..." --weight=1
 
@@ -28,9 +28,6 @@ ynh_remove_systemd_config
 
 ynh_redis_remove_db "$redis_db"
 
-# Remove backend
-ynh_secure_remove --file="$backend_path"
-
 # Remove the dedicated NGINX config
 ynh_remove_nginx_config
 
diff --git a/scripts/restore b/scripts/restore
index 8e89323..84e0014 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -16,14 +16,9 @@ ynh_script_progression --message="Restoring $app main directory..." --weight=4
 
 # Frontend
 ynh_restore_file --origin_path="$install_dir"
-chmod 750 "$install_dir"
-chmod -R o-rwx "$install_dir"
-chown -R $app:www-data "$install_dir"
 
-# Backend
-ynh_restore_file --origin_path="$backend_path"
-chmod +x "$backend_path/vikunja"
-chown -R $app:www-data "$backend_path/files"
+chmod -R o-rwx "$install_dir"
+chown -R "$app:www-data" "$install_dir"
 
 #=================================================
 # RESTORE THE POSTGRESQL DATABASE
diff --git a/scripts/upgrade b/scripts/upgrade
index 0ed8ea6..d67d740 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -17,71 +17,65 @@ timezone="$(cat /etc/timezone)"
 secret=$(ynh_string_random --length=32)
 redis_db=$(ynh_redis_get_free_db)
 
-#=================================================
-# CHECK VERSION
-#=================================================
-
-upgrade_type=$(ynh_check_app_version_changed)
-
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
 ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
 
-# If backend_path doesn't exist, create it
-if [ -z "${backend_path:-}" ]; then
-	backend_path=/opt/$app
-	ynh_app_setting_set --app=$app --key=backend_path --value=$backend_path
-fi
-
 if [ -z "${set_motd:-}" ]; then
 	set_motd=""
-	ynh_app_setting_set --app=$app --key=set_motd --value=$set_motd
+	ynh_app_setting_set --app="$app" --key="set_motd" --value="$set_motd"
 fi
 
 if [ -z "${enable_registration:-}" ]; then
 	enable_registration="true"
-	ynh_app_setting_set --app=$app --key=enable_registration --value=$enable_registration
+	ynh_app_setting_set --app="$app" --key="enable_registration" --value="$enable_registration"
 fi
 
 if [ -z "${enable_linksharing:-}" ]; then
 	enable_linksharing="true"
-	ynh_app_setting_set --app=$app --key=enable_linksharing --value=$enable_linksharing
+	ynh_app_setting_set --app="$app" --key="enable_linksharing" --value="$enable_linksharing"
 fi
 
 if [ -z "${enable_taskattachments:-}" ]; then
 	enable_taskattachments="true"
-	ynh_app_setting_set --app=$app --key=enable_taskattachments --value=$enable_taskattachments
+	ynh_app_setting_set --app="$app" --key="enable_taskattachments" --value="$enable_taskattachments"
 fi
 
 if [ -z "${enable_taskcomments:-}" ]; then
 	enable_taskcomments="true"
-	ynh_app_setting_set --app=$app --key=enable_taskcomments --value=$enable_taskcomments
+	ynh_app_setting_set --app="$app" --key="enable_taskcomments" --value="$enable_taskcomments"
 fi
 
 if [ -z "${enable_emailreminders:-}" ]; then
 	enable_emailreminders="true"
-	ynh_app_setting_set --app=$app --key=enable_emailreminders --value=$enable_emailreminders
+	ynh_app_setting_set --app="$app" --key="enable_emailreminders" --value="$enable_emailreminders"
 fi
 
 if [ -z "${enable_userdeletion:-}" ]; then
 	enable_userdeletion="true"
-	ynh_app_setting_set --app=$app --key=enable_userdeletion --value=$enable_userdeletion
+	ynh_app_setting_set --app="$app" --key="enable_userdeletion" --value="$enable_userdeletion"
 fi
 
 if [ -z "${maxavatarsize:-}" ]; then
 	maxavatarsize=1024
-	ynh_app_setting_set --app=$app --key=maxavatarsize --value=$maxavatarsize
+	ynh_app_setting_set --app="$app" --key="maxavatarsize" --value="$maxavatarsize"
 fi
 
 if [ -z "${maxitemsperpage:-}" ]; then
 	maxitemsperpage=50
-	ynh_app_setting_set --app=$app --key=maxitemsperpage --value=$maxitemsperpage
+	ynh_app_setting_set --app="$app" --key="maxitemsperpage" --value="$maxitemsperpage"
 fi
 
 if [ -z "${language:-}" ]; then
 	language="en"
-	ynh_app_setting_set --app=$app --key=language --value=$language
+	ynh_app_setting_set --app="$app" --key="language" --value="$language"
+fi
+
+if ynh_compare_current_package_version --comparison lt --version "0.23.0~ynh1"; then
+	mv "$backend_path/config.yml" "$install_dir/config.yml"
+	ynh_secure_remove "$backend_path"
+	ynh_app_setting_delete --app="$app" --key="backend_path"
 fi
 
 #=================================================
@@ -96,36 +90,27 @@ ynh_systemd_action --service_name=$app --action=stop --log_path=systemd
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
+ynh_script_progression --message="Upgrading source files..." --weight=5
 
-if [ "$upgrade_type" == "UPGRADE_APP" ]
-then
-	ynh_script_progression --message="Upgrading source files..." --weight=5
+# Frontend
+ynh_setup_source --dest_dir="$install_dir"
+executable="$(find $tempdir -name "vikunja-*" \! -name "*.sha256")"
+ln -s "$executable" "$install_dir/vikunja"
 
-	# Frontend
-	ynh_setup_source --dest_dir="$install_dir" --source_id="front"
-	
-	# Backend
-	mkdir -p "$backend_path/files"
-	tempdir="$(mktemp -d)"
-	ynh_setup_source --dest_dir=$tempdir --source_id="back"
-	back="$(find $tempdir -name "vikunja-*" \! -name "*.sha256")"
-	cp "$back" "$backend_path/vikunja"
-fi
+chmod +x "$install_dir/vikunja"
 
 chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"
-chmod +x "$backend_path/vikunja"
-chown -R $app:www-data "$backend_path/files"
 
 #=================================================
 # UPGRADE A CONFIGURATION
 #=================================================
 ynh_script_progression --message="Upgrading a configuration file..." --weight=1
 
-ynh_add_config --template="config.yml" --destination="$backend_path/config.yml"
+ynh_add_config --template="config.yml" --destination="$install_dir/config.yml"
 
-chmod 400 "$backend_path/config.yml"
-chown $app:$app "$backend_path/config.yml"
+chmod 400 "$install_dir/config.yml"
+chown $app:$app "$install_dir/config.yml"
 
 #=================================================
 # NGINX CONFIGURATION
diff --git a/tests.toml b/tests.toml
index 98df2e1..11b0f90 100644
--- a/tests.toml
+++ b/tests.toml
@@ -1,3 +1,5 @@
+#:schema https://raw.githubusercontent.com/YunoHost/apps/master/schemas/tests.v1.schema.json
+
 test_format = 1.0
 
 [default]