diff --git a/check_process b/check_process
index 37eeef5..b263d1a 100644
--- a/check_process
+++ b/check_process
@@ -11,7 +11,7 @@
 		is_public=1	(PUBLIC|public=1|private=0)
   	password="pass"
 	; Checks
-		pkg_linter=0
+		pkg_linter=1
 		setup_sub_dir=1
 		setup_root=0
 		setup_nourl=0
diff --git a/manifest.json b/manifest.json
index 476231d..34f2d5c 100644
--- a/manifest.json
+++ b/manifest.json
@@ -3,7 +3,7 @@
 	"id": "pagure",
 	"packaging_format": 1,
 	"requirements": {
-		"yunohost": ">= 3.0.0"
+		"yunohost": ">= 3.0.0~beta1.2"
 	},
 	"description": {
 		"en": "Pagure is a git-centered forge, python based using pygit2."
@@ -15,7 +15,7 @@
 		"name": "Jean-Baptiste Holcroft",
 		"email": "jean-baptiste@holcroft.fr"
 	},
-	"multi_instance": true,
+	"multi_instance": false,
 	"services": [
 		"nginx"
 	],
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 157262c..4311a51 100755
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -31,9 +31,12 @@ ynh_check_global_uwsgi_config () {
 # this helper :
 #
 #   __APP__       by  $app
+#   __PATH__      by  $path_url
 #   __FINALPATH__ by  $final_path
 #
 # usage: ynh_add_systemd_config
+#
+# to interact with your service: `systemctl <action> uwsgi-app@app`
 ynh_add_uwsgi_service () {
 	ynh_check_global_uwsgi_config
 
@@ -49,6 +52,9 @@ ynh_add_uwsgi_service () {
 	if test -n "${final_path:-}"; then
 		ynh_replace_string "__FINALPATH__" "$final_path" "$finaluwsgiini"
 	fi
+	if test -n "${path_url:-}"; then
+		ynh_replace_string "__PATH__" "$path_url" "$finaluwsgiini"
+	fi
 	if test -n "${app:-}"; then
 		ynh_replace_string "__APP__" "$app" "$finaluwsgiini"
 	fi
@@ -74,9 +80,24 @@ ynh_remove_uwsgi_service () {
 		yunohost service remove "uwsgi-app@$app.socket"
 
 		ynh_secure_remove "$finaluwsgiini"
+		ynh_secure_remove "/var/run/uwsgi/$app.socket"
+		ynh_secure_remove "/var/log/uwsgi/app/$app"
 	fi
 }
 
+
+#=================================================
+#
+# POSTGRES HELPERS
+#
+# Point of contact : Jean-Baptiste Holcroft <jean-baptiste@holcroft.fr>
+#=================================================
+
+# Create a master password and set up global settings
+# Please always call this script in install and restore scripts
+#
+# usage: ynh_psql_test_if_first_run
+
 ynh_psql_test_if_first_run() {
 	if [ -f /etc/yunohost/psql ];
 	then
@@ -97,14 +118,19 @@ ynh_psql_test_if_first_run() {
 		fi
 
 		systemctl start postgresql
-                su --command="psql -c\"ALTER user postgres WITH PASSWORD '${pgsql}'\"" postgres
-		# we can't use peer since YunoHost create users with nologin
+		sudo --login --user=postgres psql -c"ALTER user postgres WITH PASSWORD '$pgsql'" postgres
+
+		# force all user to connect to local database using passwords
+		# https://www.postgresql.org/docs/current/static/auth-pg-hba-conf.html#EXAMPLE-PG-HBA.CONF
+		# Note: we can't use peer since YunoHost create users with nologin
+		#  See: https://github.com/YunoHost/yunohost/blob/unstable/data/helpers.d/user
 		sed -i '/local\s*all\s*all\s*peer/i \
 		local all all password' "$pg_hba"
 		systemctl enable postgresql
 		systemctl reload postgresql
 	fi
 }
+
 # Open a connection as a user
 #
 # example: ynh_psql_connect_as 'user' 'pass' <<< "UPDATE ...;"
@@ -118,7 +144,7 @@ ynh_psql_connect_as() {
 	user="$1"
 	pwd="$2"
 	db="$3"
-	su --command="PGUSER=\"${user}\" PGPASSWORD=\"${pwd}\" psql \"${db}\"" postgres
+	sudo --login --user=postgres PGUSER="$user" PGPASSWORD="$pwd" psql "$db"
 }
 
 # # Execute a command as root user
@@ -128,7 +154,7 @@ ynh_psql_connect_as() {
 # | arg: db - the database to connect to
 ynh_psql_execute_as_root () {
 	sql="$1"
-	su --command="psql" postgres <<< "$sql"
+	sudo --login --user=postgres psql <<< "$sql"
 }
 
 # Execute a command from a file as root user
@@ -139,7 +165,7 @@ ynh_psql_execute_as_root () {
 ynh_psql_execute_file_as_root() {
 	file="$1"
 	db="$2"
-	su -c "psql $db" postgres < "$file"
+	sudo --login --user=postgres psql "$db" < "$file"
 }
 
 # Create a database, an user and its password. Then store the password in the app's config
@@ -153,7 +179,6 @@ ynh_psql_execute_file_as_root() {
 # | arg: pwd - Password of the database. If not given, a password will be generated
 ynh_psql_setup_db () {
 	db_user="$1"
-	app="$1"
 	db_name="$2"
 	new_db_pwd=$(ynh_string_random)	# Generate a random password
 	# If $3 is not given, use new_db_pwd instead for db_pwd.
@@ -162,7 +187,7 @@ ynh_psql_setup_db () {
 	ynh_app_setting_set "$app" psqlpwd "$db_pwd"	# Store the password in the app's config
 }
 
-# Create a database and grant optionnaly privilegies to a user
+# Create a database and grant privilegies to a user
 #
 # usage: ynh_psql_create_db db [user [pwd]]
 # | arg: db - the database name to create
@@ -173,7 +198,7 @@ ynh_psql_create_db() {
 	user="$2"
 	pwd="$3"
 	ynh_psql_create_user "$user" "$pwd"
-	su --command="createdb --owner=\"${user}\" \"${db}\"" postgres
+	sudo --login --user=postgres createdb --owner="$user" "$db"
 }
 
 # Drop a database
@@ -184,8 +209,8 @@ ynh_psql_create_db() {
 ynh_psql_remove_db() {
 	db="$1"
 	user="$2"
-	su --command="dropdb \"${db}\"" postgres
-	ynh_psql_drop_user "${user}"
+	sudo --login --user=postgres dropdb "$db"
+	ynh_psql_drop_user "$user"
 }
 
 # Dump a database
@@ -197,7 +222,7 @@ ynh_psql_remove_db() {
 # | ret: the psqldump output
 ynh_psql_dump_db() {
 	db="$1"
-	su --command="pg_dump \"${db}\"" postgres
+	sudo --login --user=postgres pg_dump "$db"
 }
 
 
@@ -208,7 +233,7 @@ ynh_psql_dump_db() {
 ynh_psql_create_user() {
 	user="$1"
 	pwd="$2"
-        su --command="psql -c\"CREATE USER ${user} WITH PASSWORD '${pwd}'\"" postgres
+        sudo --login --user=postgres psql -c"CREATE USER $user WITH PASSWORD '$pwd'" postgres
 }
 
 # Drop a user
@@ -217,5 +242,126 @@ ynh_psql_create_user() {
 # | arg: user - the user name to drop
 ynh_psql_drop_user() {
 	user="$1"
-	su --command="dropuser \"${user}\"" postgres
+	sudo --login --user=postgres dropuser "$user"
 }
+
+# LOCAL ADDITION:
+# save file locally if not in the cache
+#
+# Download, check integrity, uncompress and patch the source from app.src
+#
+# The file conf/app.src need to contains:
+#
+# SOURCE_URL=Address to download the app archive
+# SOURCE_SUM=Control sum
+# # (Optional) Program to check the integrity (sha256sum, md5sum...)
+# # default: sha256
+# SOURCE_SUM_PRG=sha256
+# # (Optional) Archive format
+# # default: tar.gz
+# SOURCE_FORMAT=tar.gz
+# # (Optional) Put false if sources are directly in the archive root
+# # default: true
+# SOURCE_IN_SUBDIR=false
+# # (Optionnal) Name of the local archive (offline setup support)
+# # default: ${src_id}.${src_format}
+# SOURCE_FILENAME=example.tar.gz
+#
+# Details:
+# This helper downloads sources from SOURCE_URL if there is no local source
+# archive in /opt/yunohost-apps-src/APP_ID/SOURCE_FILENAME
+#
+# Next, it checks the integrity with "SOURCE_SUM_PRG -c --status" command.
+#
+# If it's ok, the source archive will be uncompressed in $dest_dir. If the
+# SOURCE_IN_SUBDIR is true, the first level directory of the archive will be
+# removed.
+#
+# Finally, patches named sources/patches/${src_id}-*.patch and extra files in
+# sources/extra_files/$src_id will be applied to dest_dir
+#
+#
+# usage: ynh_setup_source dest_dir [source_id]
+# | arg: dest_dir  - Directory where to setup sources
+# | arg: source_id - Name of the app, if the package contains more than one app
+ynh_setup_source_local () {
+    local dest_dir=$1
+    local src_id=${2:-app} # If the argument is not given, source_id equals "app"
+
+    # Load value from configuration file (see above for a small doc about this file
+    # format)
+    local src_url=$(grep 'SOURCE_URL=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+    local src_sum=$(grep 'SOURCE_SUM=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+    local src_sumprg=$(grep 'SOURCE_SUM_PRG=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+    local src_format=$(grep 'SOURCE_FORMAT=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+    local src_in_subdir=$(grep 'SOURCE_IN_SUBDIR=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+    local src_filename=$(grep 'SOURCE_FILENAME=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
+
+    # Default value
+    src_sumprg=${src_sumprg:-sha256sum}
+    src_in_subdir=${src_in_subdir:-true}
+    src_format=${src_format:-tar.gz}
+    src_format=$(echo "$src_format" | tr '[:upper:]' '[:lower:]')
+    if [ "$src_filename" = "" ] ; then
+        src_filename="${src_id}.${src_format}"
+    fi
+    local local_src="/var/cache/yunohost/ynh_setup_source/${YNH_APP_ID}/${src_filename}"
+
+    # if cache file exists and the checksum isn't good, download it again
+    # if not, just download the file
+
+    if test -e "$local_src"
+    then
+    	echo "${src_sum} ${local_src}" | ${src_sumprg} -c --status \
+        	|| wget -nv -O $local_src $src_url
+    else
+    	mkdir -p "/var/cache/yunohost/ynh_setup_source/${YNH_APP_ID}"
+    	wget -nv -O $local_src $src_url
+    fi
+    cp $local_src $src_filename
+
+    # Check the control sum
+    echo "${src_sum} ${src_filename}" | ${src_sumprg} -c --status \
+        || ynh_die "Corrupt source"
+
+    # Extract source into the app dir
+    mkdir -p "$dest_dir"
+    if [ "$src_format" = "zip" ]
+    then
+        # Zip format
+        # Using of a temp directory, because unzip doesn't manage --strip-components
+        if $src_in_subdir ; then
+            local tmp_dir=$(mktemp -d)
+            unzip -quo $src_filename -d "$tmp_dir"
+            cp -a $tmp_dir/*/. "$dest_dir"
+            ynh_secure_remove "$tmp_dir"
+        else
+            unzip -quo $src_filename -d "$dest_dir"
+        fi
+    else
+        local strip=""
+        if $src_in_subdir ; then
+            strip="--strip-components 1"
+        fi
+        if [[ "$src_format" =~ ^tar.gz|tar.bz2|tar.xz$ ]] ; then
+            tar -xf $src_filename -C "$dest_dir" $strip
+        else
+            ynh_die "Archive format unrecognized."
+        fi
+    fi
+
+    # Apply patches
+    if (( $(find $YNH_CWD/../sources/patches/ -type f -name "${src_id}-*.patch" 2> /dev/null | wc -l) > "0" )); then
+        local old_dir=$(pwd)
+        (cd "$dest_dir" \
+            && for p in $YNH_CWD/../sources/patches/${src_id}-*.patch; do \
+                patch -p1 < $p; done) \
+            || ynh_die "Unable to apply patches"
+        cd $old_dir
+    fi
+
+    # Add supplementary files
+    if test -e "$YNH_CWD/../sources/extra_files/${src_id}"; then
+        cp -a $YNH_CWD/../sources/extra_files/$src_id/. "$dest_dir"
+    fi
+}
\ No newline at end of file
diff --git a/scripts/install b/scripts/install
index 25af729..630eea9 100755
--- a/scripts/install
+++ b/scripts/install
@@ -139,7 +139,7 @@ ynh_add_uwsgi_service
 # Get Pagure source
 #=================================================
 
-ynh_setup_source "${final_path}"
+ynh_setup_source_local "${final_path}"
 ln -s "${final_path}/pagure-3.13.2" "${final_path}/pagure"
 
 #=================================================