diff --git a/manifest.toml b/manifest.toml
index d7385aa..1769b8f 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -5,7 +5,7 @@ name = "SearXNG"
 description.en = "Internet metasearch engine which aggregates results from more than 70 search services"
 description.fr = "Méta-moteur de recherche qui rassemble les résultats de plus de 70 services de recherche"
 
-version = "2024.07.08~ynh2"
+version = "2024.07.08~ynh3"
 
 maintainers = ["mh4ckt3mh4ckt1c4s", "ewilly"]
 
@@ -56,4 +56,4 @@ ram.runtime = "200M"
     main.url = "/"
     
     [resources.apt]
-    packages = "git, build-essential, libxslt-dev, python3-dev, python3-venv, python3-cffi, python3-babel, zlib1g-dev, libffi-dev, libssl-dev, python3-lxml, uwsgi, uwsgi-plugin-python3, shellcheck"
+    packages = "python3-dev, python3-babel, python3-venv, uwsgi, uwsgi-plugin-python3, git, build-essential, libxslt-dev, zlib1g-dev, libffi-dev, libssl-dev"
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 15c1ebe..3f7b0d4 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -4,6 +4,79 @@
 # COMMON VARIABLES
 #=================================================
 
+#=================================================
+# PERSONAL HELPERS
+#=================================================
+
+# Install/Upgrade SearXNG in virtual environement
+myynh_install_searxng () {
+
+	ynh_script_progression --message="Setting up source files..." --weight=1
+
+	# Download source
+	repo_fullpath=$(ynh_read_manifest --manifest_key="upstream.code")
+	commit_sha=$(ynh_read_manifest --manifest_key="resources.sources.main.url" | xargs basename --suffix=".tar.gz")
+	ynh_exec_as $app git clone -n "$repo_fullpath" "$install_dir/searxng-src"
+	pushd "$install_dir/searxng-src"
+		ynh_exec_as $app git checkout "$commit_sha"
+	popd
+
+	# Create the virtual environment
+	ynh_exec_as $app python3 -m venv "$install_dir/searxng-pyenv"
+
+	# Source the virtual environment in the user profile
+	ynh_exec_as $app echo ". $install_dir/searxng-pyenv/bin/activate" >>  "$install_dir/.profile"
+
+	ynh_script_progression --message="Installing SearXNG..." --weight=2
+	# Install SearXNG in a 'sub shell'
+	(
+		# Check if virtualenv was sourced from the login
+		ynh_exec_as $app echo $(command -v python && python --version)
+
+		# Install last version of pip
+		ynh_exec_warn_less ynh_exec_as $app pip install --upgrade pip
+
+		# Install last version of setuptools
+		ynh_exec_warn_less ynh_exec_as $app pip install --upgrade setuptools
+
+		# Install last version of wheel
+		ynh_exec_warn_less ynh_exec_as $app pip install --upgrade wheel
+
+		# Install last version of pyyaml
+		ynh_exec_warn_less ynh_exec_as $app pip install --upgrade pyyaml
+
+		# Install SearXNG
+		cd "$install_dir/searxng-src"
+		pip install -e .
+	)
+}
+
+# Upgrade the virtual environment directory
+myynh_upgrade_venv_directory () {
+
+	# Remove old python links before recreating them
+	find "$install_dir/bin/" -type l -name 'python*' \
+		-exec bash -c 'rm --force "$1"' _ {} \;
+
+	# Remove old python directories before recreating them
+	find "$install_dir/lib/" -mindepth 1 -maxdepth 1 -type d -name "python*" \
+		-not -path "*/python${py_required_version%.*}" \
+		-exec bash -c 'rm --force --recursive "$1"' _ {} \;
+	find "$install_dir/include/site/" -mindepth 1 -maxdepth 1 -type d -name "python*" \
+		-not -path "*/python${py_required_version%.*}" \
+		-exec bash -c 'rm --force --recursive "$1"' _ {} \;
+
+	# Upgrade the virtual environment directory
+	ynh_exec_as $app $py_app_version -m venv --upgrade "$install_dir"
+}
+
+# Set permissions
+myynh_set_permissions () {
+	chown -R $app: "$install_dir"
+	chmod 750 "$install_dir"
+	chmod -R o-rwx "$install_dir"
+}
+
 #=================================================
 # UWSGI HELPERS
 #=================================================
diff --git a/scripts/install b/scripts/install
index 7d472c5..072cdf3 100755
--- a/scripts/install
+++ b/scripts/install
@@ -14,21 +14,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
-ynh_script_progression --message="Setting up source files..." --weight=1
-
-repo_fullpath=$(ynh_read_manifest --manifest_key="upstream.code")
-commit_sha=$(ynh_read_manifest --manifest_key="resources.sources.main.url" | xargs basename --suffix=".tar.gz")
-ynh_exec_fully_quiet git clone -n "$repo_fullpath" "$install_dir/searxng-src"
-pushd "$install_dir/searxng-src"
-	ynh_exec_fully_quiet git checkout "$commit_sha"
-popd
-
-ynh_script_progression --message="Installing SearXNG..." --weight=2
-
-python3 -m venv --system-site-packages "$install_dir/searxng-pyenv"
-set +o nounset; source "$install_dir/searxng-pyenv/bin/activate"; set -o nounset
-pip3 install -U pip "setuptools<71.0.0" wheel pyyaml --no-cache-dir
-ynh_exec_fully_quiet pip3 install -e "$install_dir/searxng-src"
+myynh_install_searxng
 
 #=================================================
 # SYSTEM CONFIGURATION
@@ -49,9 +35,7 @@ ynh_script_progression --message="Adding a configuration file..." --weight=1
 secret_key=$(ynh_string_random)
 ynh_add_config --template="../conf/settings.yml" --destination="$install_dir/settings.yml"
 
-chmod 750 "$install_dir"
-chmod -R o-rwx "$install_dir"
-chown -R $app: "$install_dir"
+myynh_set_permissions
 
 #=================================================
 # GENERIC FINALIZATION
diff --git a/scripts/restore b/scripts/restore
index 1ac85c5..4cd5198 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -16,9 +16,7 @@ ynh_script_progression --message="Restoring the app main directory..." --weight=
 
 ynh_restore_file --origin_path="$install_dir"
 
-chown -R $app:www-data "$install_dir"
-chmod 750 "$install_dir"
-chmod -R o-rwx "$install_dir"
+myynh_set_permissions
 
 #=================================================
 # RESTORE SYSTEM CONFIGURATIONS
diff --git a/scripts/upgrade b/scripts/upgrade
index 331f05e..da070c0 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -46,26 +46,11 @@ ynh_systemd_action --service_name="uwsgi-app@$app.service" --action="stop" --log
 
 if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
-	ynh_script_progression --message="Upgrading source files..." --weight=1
-	
-	ynh_secure_remove --file="$install_dir/searxng-src"
-	repo_fullpath=$(ynh_read_manifest --manifest_key="upstream.code")
-	commit_sha=$(ynh_read_manifest --manifest_key="resources.sources.main.url" | xargs basename --suffix=".tar.gz")
-	ynh_exec_fully_quiet git clone -n "$repo_fullpath" "$install_dir/searxng-src"
-	pushd "$install_dir/searxng-src"
-		ynh_exec_fully_quiet git checkout "$commit_sha"
-	popd
-	
-	ynh_secure_remove --file="$install_dir/searxng-pyenv"
-	python3 -m venv --system-site-packages "$install_dir/searxng-pyenv"
-	set +o nounset; source "$install_dir/searxng-pyenv/bin/activate"; set -o nounset
-	pip3 install -U pip "setuptools<71.0.0" wheel pyyaml --no-cache-dir
-	ynh_exec_fully_quiet pip3 install -e "$install_dir/searxng-src"
+	myynh_upgrade_venv_directory
+	myynh_install_searxng
 fi
 
-chmod 750 "$install_dir"
-chmod -R o-rwx "$install_dir"
-chown -R $app: "$install_dir"
+myynh_set_permissions
 
 #=================================================
 # REAPPLY SYSTEM CONFIGURATIONS