diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 6e1050a..64df660 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -27,6 +27,11 @@ jobs:
       with:
         python-version: '${{ matrix.python-version }}'
 
+    - uses: actions/cache@v2
+      with:
+        path: ~/.cache/
+        key: dot-cache-files
+
     - name: 'Install package'
       run: |
         pip3 install poetry
diff --git a/config_panel.toml b/config_panel.toml
index 0061ee3..921a8cb 100644
--- a/config_panel.toml
+++ b/config_panel.toml
@@ -9,13 +9,13 @@ services = ["__APP__"]
 
         [main.config.default_from_email]
         ask = "from email"
-        type = "string"
+        type = "email"
         help = "Default email address to use for various automated emails."
         bind = "default_from_email:__FINALPATH__/settings.py"
 
         [main.config.admin_email]
         ask = "ADMIN email"
-        type = "string"
+        type = "email"
         help = "EMail address for error emails."
         bind = "admin_email:__FINALPATH__/settings.py"
 
diff --git a/scripts/_common.sh b/scripts/_common.sh
index eb4830b..24083aa 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -34,7 +34,7 @@ default_from_email="${app}@${domain}"
 public_path=/var/www/$app
 final_path=/opt/yunohost/$app
 log_path=/var/log/$app
-log_file="${log_path}/django_example_ynh.log"
+log_file="${log_path}/${app}.log"
 
 #=================================================
 # COMMON VARIABLES
@@ -85,17 +85,3 @@ ynh_redis_remove_db() {
 	redis-cli -n "$db" flushall
 }
 
-#=================================================
-
-# Execute a command as another user
-# usage: ynh_exec_as USER COMMAND [ARG ...]
-ynh_exec_as() {
-  local USER=$1
-  shift 1
-
-  if [[ $USER = $(whoami) ]]; then
-    eval "$@"
-  else
-    sudo -u "$USER" "$@"
-  fi
-}
diff --git a/scripts/change_url b/scripts/change_url
index 326e707..5bb62fb 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -30,7 +30,11 @@ final_path=$(ynh_app_setting_get --app="$app" --key=final_path)
 log_path=$(ynh_app_setting_get --app="$app" --key=log_path)
 
 port=$(ynh_app_setting_get --app="$app" --key=port)
+
 db_pwd=$(ynh_app_setting_get --app="$app" --key=psqlpwd)
+db_name=$(ynh_sanitize_dbid --db_name="$app")
+db_user=$db_name
+
 redis_db=$(ynh_app_setting_get --app="$app" --key=redis_db)
 
 #-------------------------------------------------
diff --git a/scripts/install b/scripts/install
index 85b33ea..751ca6f 100755
--- a/scripts/install
+++ b/scripts/install
@@ -228,9 +228,9 @@ then
 fi
 
 #=================================================
-# Start django_example_ynh via systemd
+# Start the app server via systemd
 #=================================================
-ynh_script_progression --message="Starting django_example_ynh's services..." --weight=5
+ynh_script_progression --message="Starting the application..." --weight=5
 
 ynh_systemd_action --service_name="$app" --action="start"
 
diff --git a/scripts/upgrade b/scripts/upgrade
index dd78304..08bb3a3 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -207,9 +207,9 @@ chmod o-rwx "$public_path"
 chmod o-rwx "$final_path"
 
 #=================================================
-# Start django_example_ynh via systemd
+# Start the app server via systemd
 #=================================================
-ynh_script_progression --message="Starting django_example_ynh's services..." --weight=5
+ynh_script_progression --message="Starting the application..." --weight=5
 
 ynh_systemd_action --service_name="$app" --action="start"