diff --git a/conf/app.src b/conf/app.src
new file mode 100644
index 0000000..b22c84c
--- /dev/null
+++ b/conf/app.src
@@ -0,0 +1,4 @@
+SOURCE_URL=https://github.com/kanboard/kanboard/releases/download/v1.0.41/kanboard-1.0.41.zip
+SOURCE_SUM=825885960c65f7817d9fc34ca5ac8c36ef637ed285bcdb2bf3f5569bf64c9ff2
+SOURCE_SUM_PRG=sha256sum
+SOURCE_FORMAT=zip
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 8d9086b..e1c9af8 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -1,28 +1,5 @@
+#!/bin/bash
 #
 # Common variables
 #
 
-# Application version
-VERSION="1.0.41"
-
-# Remote URL to fetch application source archive
-APPLICATION_SOURCE_URL="https://kanboard.net/kanboard-${VERSION}.zip"
-
-#
-# Common helpers
-#
-
-# Download and extract application sources to the given directory
-# usage: extract_application_to DESTDIR
-extract_application() {
-  local DESTDIR=$1
-  TMPDIR=$(mktemp -d)
-  chmod 755 $TMPDIR
-  archive="${TMPDIR}/application.zip"
-  wget -q -O "$archive" "$APPLICATION_SOURCE_URL" \
-    || ynh_die "Unable to download application archive"
-  unzip -qq "$archive" -d "$TMPDIR" \
-    || ynh_die "Unable to extract application archive"
-  rm "$archive"
-  sudo rsync -a "$TMPDIR"/*/* "$DESTDIR"
-}
diff --git a/scripts/install b/scripts/install
index c1cc5d0..f3db401 100644
--- a/scripts/install
+++ b/scripts/install
@@ -45,7 +45,7 @@ ynh_app_setting_set $app mysqlpwd $dbpass
 ynh_app_setting_set $app adminusername $admin
 ynh_app_setting_set $app is_public $is_public
 
-extract_application "$DESTDIR"
+ynh_setup_source "$DESTDIR"
 
 # Copy and edit config.php
 sudo cp ../conf/config.php ${DESTDIR}
diff --git a/scripts/upgrade b/scripts/upgrade
index f0f8bde..33952bb 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -39,7 +39,7 @@ sudo rm -rf /var/lib/php5/session/*
 # Move old app dir
 sudo mv ${DESTDIR} ${DESTDIR}.old
 
-extract_application "$DESTDIR"
+ynh_setup_source "$DESTDIR"
 
 # restore data
 sudo cp -a ${DESTDIR}.old/data ${DESTDIR}