diff --git a/conf/.env b/conf/.env
new file mode 100644
index 0000000..23c6c3f
--- /dev/null
+++ b/conf/.env
@@ -0,0 +1,4 @@
+SHIORI_HTTP_PORT=__PORT__
+SHIORI_HTTP_ROOT_PATH=__PATH__
+SHIORI_DIR=__DATA_DIR__"
+SHIORI_HTTP_SECRET_KEY=__KEY__"
\ No newline at end of file
diff --git a/conf/systemd.service b/conf/systemd.service
index 1141906..0d92eb2 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -7,10 +7,10 @@ After=network-online.target
 Type=simple
 User=__APP__
 Group=__APP__
+EnvironmentFile="__INSTALL_DIR__/.env"
 WorkingDirectory=__INSTALL_DIR__/
-ExecStart=__INSTALL_DIR__/shiori server --port __PORT__ --webroot __PATH__
+ExecStart=__INSTALL_DIR__/shiori server
 Restart=always
-Environment="SHIORI_DIR=__DATA_DIR__"
 
 [Install]
 WantedBy=multi-user.target
diff --git a/scripts/install b/scripts/install
index 8730de9..fbdf13f 100755
--- a/scripts/install
+++ b/scripts/install
@@ -12,6 +12,16 @@ ynh_setup_source --dest_dir="$install_dir"
 
 chmod +x "$install_dir/shiori"
 
+#=================================================
+# APP INITIAL CONFIGURATION
+#=================================================
+ynh_script_progression "Adding $app's configuration files..."
+
+ynh_add_config --template=".env" --destination="$install_dir/.env"
+
+chmod 400 "$install_dir/.env"
+chown "$app:$app" "$install_dir/.env"
+
 #=================================================
 # SYSTEM CONFIGURATION
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index a0fe5d0..c847a80 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -15,10 +15,20 @@ ynh_systemctl --service=$app --action="stop" --log_path="systemd"
 #=================================================
 ynh_script_progression "Upgrading source files..."
 
-ynh_setup_source --dest_dir="$install_dir"
+ynh_setup_source --dest_dir="$install_dir" --keep=".env"
 
 chmod +x "$install_dir/shiori"
 
+#=================================================
+# UPDATE A CONFIG FILE
+#=================================================
+ynh_script_progression --message="Updating $app's configuration files..." --weight=1
+
+ynh_add_config --template=".env" --destination="$install_dir/.env"
+
+chmod 400 "$install_dir/.env"
+chown "$app:$app" "$install_dir/.env"
+
 #=================================================
 # MIGRATE AND UPGRADE
 #=================================================