diff --git a/scripts/install b/scripts/install
index dce9e2f..f8345b6 100755
--- a/scripts/install
+++ b/scripts/install
@@ -83,23 +83,18 @@ ynh_script_progression --message="Configuring system user..." --weight=1
 ynh_system_user_create --username=$app --home_dir="$final_path"
 
 #=================================================
-# CREATE A MYSQL DATABASE
+# CREATE A POSTGRESQL DATABASE
 #=================================================
-ynh_script_progression --message="Creating a MySQL database..." --weight=1
+ynh_script_progression --message="Creating a PostgreSQL database..." --weight=1
 
-### Use these lines if you need a database for the application.
-### `ynh_mysql_setup_db` will create a database, an associated user and a ramdom password.
-### The password will be stored as 'mysqlpwd' into the app settings,
-### and will be available as $db_pwd
-### If you're not using these lines:
-###		- Remove the section "BACKUP THE MYSQL DATABASE" in the backup script
-###		- Remove also the section "REMOVE THE MYSQL DATABASE" in the remove script
-###		- As well as the section "RESTORE THE MYSQL DATABASE" in the restore script
-
-db_name=$(ynh_sanitize_dbid --db_name=$app)
-db_user=$db_name
+db_name=$(ynh_sanitize_dbid --db_name="${app}")
+db_user=$(ynh_sanitize_dbid --db_name=$app)
 ynh_app_setting_set --app=$app --key=db_name --value=$db_name
-ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name
+ynh_app_setting_set --app=$app --key=db_user --value=$db_user
+ynh_psql_test_if_first_run
+ynh_psql_setup_db --db_user=$db_user --db_name=$db_name
+ynh_psql_execute_as_root --sql="ALTER USER $db_user CREATEDB;"
+db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
@@ -114,34 +109,11 @@ 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"
 
-# FIXME: this should be managed by the core in the future
-# Here, as a packager, you may have to tweak the ownerhsip/permissions
-# such that the appropriate users (e.g. maybe www-data) can access
-# files in some cases.
-# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
-# this will be treated as a security issue.
+
 chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
 
-#=================================================
-# PHP-FPM CONFIGURATION
-#=================================================
-ynh_script_progression --message="Configuring PHP-FPM..." --weight=1
-
-### `ynh_add_fpm_config` is used to set up a PHP config.
-### You can remove it if your app doesn't use PHP.
-### `ynh_add_fpm_config` will use the files conf/php-fpm.conf
-### If you're not using these lines:
-###		- You can remove these files in conf/.
-###		- Remove the section "BACKUP THE PHP-FPM CONFIGURATION" in the backup script
-###		- Remove also the section "REMOVE PHP-FPM CONFIGURATION" in the remove script
-###		- As well as the section "RESTORE THE PHP-FPM CONFIGURATION" in the restore script
-###		  with the reload at the end of the script.
-###		- And the section "PHP-FPM CONFIGURATION" in the upgrade script
-
-# Create a dedicated PHP-FPM config
-ynh_add_fpm_config
 
 #=================================================
 # NGINX CONFIGURATION
@@ -153,11 +125,6 @@ ynh_script_progression --message="Configuring NGINX web server..." --weight=1
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# SPECIFIC SETUP
-#=================================================
-# ...
-#=================================================
 
 #=================================================
 # CREATE DATA DIRECTORY
@@ -177,12 +144,7 @@ ynh_app_setting_set --app=$app --key=datadir --value=$datadir
 
 mkdir -p $datadir
 
-# FIXME: this should be managed by the core in the future
-# Here, as a packager, you may have to tweak the ownerhsip/permissions
-# such that the appropriate users (e.g. maybe www-data) can access
-# files in some cases.
-# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
-# this will be treated as a security issue.
+
 chmod 750 "$datadir"
 chmod -R o-rwx "$datadir"
 chown -R $app:www-data "$datadir"
@@ -224,16 +186,6 @@ chown $app:$app "$final_path/some_config_file"
 #=================================================
 ynh_script_progression --message="Configuring a systemd service..." --weight=1
 
-### `ynh_systemd_config` is used to configure a systemd script for an app.
-### It can be used for apps that use sysvinit (with adaptation) or systemd.
-### Have a look at the app to be sure this app needs a systemd script.
-### `ynh_systemd_config` will use the file conf/systemd.service
-### If you're not using these lines:
-###		- You can remove those files in conf/.
-###		- Remove the section "BACKUP SYSTEMD" in the backup script
-###		- Remove also the section "STOP AND REMOVE SERVICE" in the remove script
-###		- As well as the section "RESTORE SYSTEMD" in the restore script
-###		- And the section "SETUP SYSTEMD" in the upgrade script
 
 # Create a dedicated systemd config
 ynh_add_systemd_config