diff --git a/issue_template.md b/.github/ISSUE_TEMPLATE.md
similarity index 91%
rename from issue_template.md
rename to .github/ISSUE_TEMPLATE.md
index 3588cc7..2729a6b 100644
--- a/issue_template.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -6,11 +6,11 @@ about: When creating a bug report, please use the following template to provide
 
 **How to post a meaningful bug report**
 1. *Read this whole template first.*
-2. *Make sure you are on the right place:*
+2. *Determine if you are on the right place:*
    - *If you were performing an action on the app from the webadmin or the CLI (install, update, backup, restore, change_url...), you are on the right place!*
    - *Otherwise, the issue may be due to the app itself. Refer to its documentation or repository for help.*
-   - *In doubt, ask here and we will figure it out together.*
-3. *Delete these italic comments as you write over them below, and remove this guide.*
+   - *When in doubt, post here and we will figure it out together.*
+3. *Delete the italic comments as you write over them below, and remove this guide.*
 --- 
 
 ### Describe the bug
@@ -31,7 +31,7 @@ about: When creating a bug report, please use the following template to provide
 
 - *If you performed a command from the CLI, the command itself is enough. For example:*
     ```sh
-    sudo yunohost app install mineweb
+    sudo yunohost app install the_app
     ```
 - *If you used the webadmin, please perform the equivalent command from the CLI first.*
 - *If the error occurs in your browser, explain what you did:*
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000..ef70e18
--- /dev/null
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,16 @@
+## Problem
+
+- *Description of why you made this PR*
+
+## Solution
+
+- *And how do you fix that problem*
+
+## PR Status
+
+- [ ] Code finished and ready to be reviewed/tested
+- [ ] The fix/enhancement were manually tested (if applicable)
+
+## Automatic tests
+
+Automatic tests can be triggered on https://ci-apps-dev.yunohost.org/ *after creating the PR*, by commenting "!testme", "!gogogadgetoci" or "By the power of systemd, I invoke The Great App CI to test this Pull Request!". (N.B. : for this to work you need to be a member of the Yunohost-Apps organization)
diff --git a/check_process b/check_process
index a452115..ca0366a 100644
--- a/check_process
+++ b/check_process
@@ -1,11 +1,8 @@
-# See here for more informations
-# https://github.com/YunoHost/package_check#syntax-check_process-file
-
 ;; Test complet
 	; Manifest
-		domain="domain.tld"	(DOMAIN)
-		path="/path"	    (PATH)	
-		is_public=1	        (PUBLIC|public=1|private=0)
+		domain="domain.tld"
+		path="/path"
+		is_public=1
 	; Checks
 		pkg_linter=1
 		setup_sub_dir=1
@@ -16,7 +13,7 @@
 		upgrade=1
 		backup_restore=1
 		multi_instance=1
-		change_url=0
+		change_url=1
 ;;; Options
 Email=
 Notification=none
diff --git a/manifest.json b/manifest.json
index 2fa500e..b17c9b1 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Customizable and intuitive CMS.",
         "fr": "CMS personnalisable et intuitif."
     },
-    "version": "1.13.0~ynh3",
+    "version": "1.13.0~ynh4",
     "url": "https://mineweb.org/",
     "license": "AGPL-3.0-only",
     "maintainer": {
@@ -14,7 +14,7 @@
         "email": "liberodark@gmail.com"
     },
     "requirements": {
-        "yunohost": ">= 4.1.7"
+        "yunohost": ">= 4.2.4"
     },
     "multi_instance": true,
     "services": [
diff --git a/pull_request.md b/pull_request.md
deleted file mode 100644
index 6c28fc5..0000000
--- a/pull_request.md
+++ /dev/null
@@ -1,16 +0,0 @@
-## Problem
-- *Description of why you made this PR*
-
-## Solution
-- *And how do you fix that problem*
-
-## PR Status
-- [ ] Code finished.
-- [ ] Tested with Package_check.
-- [ ] Fix or enhancement tested.
-- [ ] Upgrade from last version tested.
-- [ ] Can be reviewed and tested.
-
-## Package_check results
----
-* An automatic package_check will be launch at https://ci-apps-dev.yunohost.org/, when you add a specific comment to your Pull Request: "!testme", "!gogogadgetoci" or "By the power of systemd, I invoke The Great App CI to test this Pull Request!"*
diff --git a/scripts/install b/scripts/install
index 0245f7b..6889207 100644
--- a/scripts/install
+++ b/scripts/install
@@ -59,6 +59,14 @@ db_name=$(ynh_sanitize_dbid $app)
 ynh_app_setting_set --app=$app --key=db_name --value=$db_name
 ynh_mysql_setup_db --db_user=$db_name --db_name=$db_name
 
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Configuring system user..." --weight=2
+
+# Create a system user
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -68,6 +76,10 @@ ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$final_path"
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -76,14 +88,6 @@ ynh_script_progression --message="Configuring NGINX web server..." --weight=2
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Configuring system user..." --weight=2
-
-# Create a system user
-ynh_system_user_create --username=$app
-
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
@@ -105,17 +109,6 @@ ynh_add_config --template="../conf/database.php" --destination="$final_path/app/
 
 ynh_replace_string --match_string="app/webroot/" --replace_string="" --target_file="$final_path/app/View/Install/first.ctp"
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-ynh_script_progression --message="Securing files and directories..." --weight=1
-
-# Set permissions to app files
-chown -R $app: $final_path
-chmod -R 775 $final_path
-
 #=================================================
 # SETUP SSOWAT
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index a697bc4..b7e38fc 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -47,6 +47,14 @@ test ! -d $final_path \
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
+#=================================================
+# RECREATE THE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Recreating the dedicated system user..." --weight=1
+
+# Create the dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
@@ -54,21 +62,9 @@ ynh_script_progression --message="Restoring MineWeb main directory..." --weight=
 
 ynh_restore_file --origin_path="$final_path"
 
-#=================================================
-# RECREATE THE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Recreating the dedicated system user..." --weight=1
-
-# Create the dedicated user (if not existing)
-ynh_system_user_create --username=$app
-
-#=================================================
-# RESTORE USER RIGHTS
-#=================================================
-
-# Restore permissions on app files
-chown -R $app: $final_path
-chmod -R 775 $final_path
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
 
 #=================================================
 # RESTORE THE PHP-FPM CONFIGURATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 7b179fb..d408e6d 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -67,6 +67,14 @@ ynh_clean_setup () {
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1
+
+# Create a dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # STANDARD UPGRADE STEPS
 #=================================================
@@ -78,9 +86,13 @@ then
 	ynh_script_progression --message="Upgrading source files..." --weight=7
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path"
+	ynh_setup_source --dest_dir="$final_path" #--keep="$final_path/app/Config/database.php"
 fi
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -89,14 +101,6 @@ ynh_script_progression --message="Upgrading NGINX web server configuration..." -
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1
-
-# Create a dedicated user (if not existing)
-ynh_system_user_create --username=$app
-
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
@@ -117,16 +121,6 @@ ynh_add_config --template="../conf/database.php" --destination="$final_path/app/
 
 ynh_replace_string --match_string="app/webroot/" --replace_string="" --target_file="$final_path/app/View/Install/first.ctp"
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-
-# Set permissions to app files
-chown -R $app: $final_path
-chmod -R 0755 $final_path
-
 #=================================================
 # GENERIC FINALIZATION
 #=================================================