diff --git a/LICENSE b/LICENSE
index 2b6ef1b..7cd6c7a 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,2645 +1,21 @@
-                    GNU AFFERO GENERAL PUBLIC LICENSE
-                       Version 3, 19 November 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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-  17. Interpretation of Sections 15 and 16.
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-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
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-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
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-    This program is free software: you can redistribute it and/or modify
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-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
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-Also add information on how to contact you by electronic and paper mail.
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-  If your software can interact with users remotely through a computer
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-For more information on this, and how to apply and follow the GNU AGPL, see
-<http://www.gnu.org/licenses/>.
-                    GNU AFFERO GENERAL PUBLIC LICENSE
-                       Version 3, 19 November 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
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-                            Preamble
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-
-                       TERMS AND CONDITIONS
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-                    GNU AFFERO GENERAL PUBLIC LICENSE
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-                       TERMS AND CONDITIONS
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-                     END OF TERMS AND CONDITIONS
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-                    GNU AFFERO GENERAL PUBLIC LICENSE
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-                       TERMS AND CONDITIONS
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-nothing other than this License grants you permission to propagate or
-modify any covered work.  These actions infringe copyright if you do
-not accept this License.  Therefore, by modifying or propagating a
-covered work, you indicate your acceptance of this License to do so.
-
-  10. Automatic Licensing of Downstream Recipients.
-
-  Each time you convey a covered work, the recipient automatically
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-  An "entity transaction" is a transaction transferring control of an
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-the predecessor has it or can get it with reasonable efforts.
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-  You may not impose any further restrictions on the exercise of the
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-(including a cross-claim or counterclaim in a lawsuit) alleging that
-any patent claim is infringed by making, using, selling, offering for
-sale, or importing the Program or any portion of it.
-
-  11. Patents.
-
-  A "contributor" is a copyright holder who authorizes use under this
-License of the Program or a work on which the Program is based.  The
-work thus licensed is called the contributor's "contributor version".
-
-  A contributor's "essential patent claims" are all patent claims
-owned or controlled by the contributor, whether already acquired or
-hereafter acquired, that would be infringed by some manner, permitted
-by this License, of making, using, or selling its contributor version,
-but do not include claims that would be infringed only as a
-consequence of further modification of the contributor version.  For
-purposes of this definition, "control" includes the right to grant
-patent sublicenses in a manner consistent with the requirements of
-this License.
-
-  Each contributor grants you a non-exclusive, worldwide, royalty-free
-patent license under the contributor's essential patent claims, to
-make, use, sell, offer for sale, import and otherwise run, modify and
-propagate the contents of its contributor version.
-
-  In the following three paragraphs, a "patent license" is any express
-agreement or commitment, however denominated, not to enforce a patent
-(such as an express permission to practice a patent or covenant not to
-sue for patent infringement).  To "grant" such a patent license to a
-party means to make such an agreement or commitment not to enforce a
-patent against the party.
-
-  If you convey a covered work, knowingly relying on a patent license,
-and the Corresponding Source of the work is not available for anyone
-to copy, free of charge and under the terms of this License, through a
-publicly available network server or other readily accessible means,
-then you must either (1) cause the Corresponding Source to be so
-available, or (2) arrange to deprive yourself of the benefit of the
-patent license for this particular work, or (3) arrange, in a manner
-consistent with the requirements of this License, to extend the patent
-license to downstream recipients.  "Knowingly relying" means you have
-actual knowledge that, but for the patent license, your conveying the
-covered work in a country, or your recipient's use of the covered work
-in a country, would infringe one or more identifiable patents in that
-country that you have reason to believe are valid.
-
-  If, pursuant to or in connection with a single transaction or
-arrangement, you convey, or propagate by procuring conveyance of, a
-covered work, and grant a patent license to some of the parties
-receiving the covered work authorizing them to use, propagate, modify
-or convey a specific copy of the covered work, then the patent license
-you grant is automatically extended to all recipients of the covered
-work and works based on it.
-
-  A patent license is "discriminatory" if it does not include within
-the scope of its coverage, prohibits the exercise of, or is
-conditioned on the non-exercise of one or more of the rights that are
-specifically granted under this License.  You may not convey a covered
-work if you are a party to an arrangement with a third party that is
-in the business of distributing software, under which you make payment
-to the third party based on the extent of your activity of conveying
-the work, and under which the third party grants, to any of the
-parties who would receive the covered work from you, a discriminatory
-patent license (a) in connection with copies of the covered work
-conveyed by you (or copies made from those copies), or (b) primarily
-for and in connection with specific products or compilations that
-contain the covered work, unless you entered into that arrangement,
-or that patent license was granted, prior to 28 March 2007.
-
-  Nothing in this License shall be construed as excluding or limiting
-any implied license or other defenses to infringement that may
-otherwise be available to you under applicable patent law.
-
-  12. No Surrender of Others' Freedom.
-
-  If conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot convey a
-covered work so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you may
-not convey it at all.  For example, if you agree to terms that obligate you
-to collect a royalty for further conveying from those to whom you convey
-the Program, the only way you could satisfy both those terms and this
-License would be to refrain entirely from conveying the Program.
-
-  13. Remote Network Interaction; Use with the GNU General Public License.
-
-  Notwithstanding any other provision of this License, if you modify the
-Program, your modified version must prominently offer all users
-interacting with it remotely through a computer network (if your version
-supports such interaction) an opportunity to receive the Corresponding
-Source of your version by providing access to the Corresponding Source
-from a network server at no charge, through some standard or customary
-means of facilitating copying of software.  This Corresponding Source
-shall include the Corresponding Source for any work covered by version 3
-of the GNU General Public License that is incorporated pursuant to the
-following paragraph.
-
-  Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the work with which it is combined will remain governed by version
-3 of the GNU General Public License.
-
-  14. Revised Versions of this License.
-
-  The Free Software Foundation may publish revised and/or new versions of
-the GNU Affero General Public License from time to time.  Such new versions
-will be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU Affero General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU Affero General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU Affero General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as published
-    by the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If your software can interact with users remotely through a computer
-network, you should also make sure that it provides a way for users to
-get its source.  For example, if your program is a web application, its
-interface could display a "Source" link that leads users to an archive
-of the code.  There are many ways you could offer source, and different
-solutions will be better for different programs; see section 13 for the
-specific requirements.
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU AGPL, see
-<http://www.gnu.org/licenses/>.
-
+The MIT License (MIT)
+
+Copyright (c) 2014-2019 The Wekan Team
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/README.md b/README.md
index 2ed8ff1..ff06768 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,25 @@
 # Wekan for Yunohost
 
+[![Integration level](https://dash.yunohost.org/integration/wekan.svg)](https://dash.yunohost.org/appci/app/wekan)  
+[![Install Wekan with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=wekan)
+
+> *This package allow you to install wekan quickly and simply on a YunoHost server.  
+If you don't have YunoHost, please see [here](https://yunohost.org/#/install) to know how to install and enjoy it.*
+
+## Overview
 Wekan is an open-source kanban board (task manager and organizer)
 
-[![Integration level](https://dash.yunohost.org/integration/wekan.svg)](https://dash.yunohost.org/appci/app/wekan)  
-[![Install Wordpress with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=wekan)
+**Shipped version:** 2.09
 
-## Screenshot
+## Screenshots
 
 ![](screenshot.jpg)
 
 ## Status
 
-- This app only works on x86, 64bits architecture ! In particular, it won't work on 32 bit machines or ARM. See the discussion [here](https://github.com/YunoHost-Apps/wekan_ynh/issues/1#issuecomment-401612500). On the long term, [support for ARM64 might happen](https://blog.wekan.team/2018/01/wekan-progress-on-x64-and-arm/index.html)...
+- This app **only works on x86, 64bits architecture** ! In particular, it won't work on 32 bit machines or ARM. See the discussion [here](https://github.com/YunoHost-Apps/wekan_ynh/issues/1#issuecomment-401612500). On the long term, [support for ARM64 might happen](https://blog.wekan.team/2018/01/wekan-progress-on-x64-and-arm/index.html)...
 
-- There is currently no SSO/LDAP integration though it might be integrated at some point in the app, now that it's supported in Meteor/Wekan. c.f. discussion in [here](https://github.com/YunoHost-Apps/wekan_ynh/issues/4). In the meantime, users can create accounts (in fact, they can create infinite number of accounts) manually, and need to login manually specifically in Wekan.
+- There is currently **no SSO/LDAP integration** though it might be integrated at some point in the app, now that it's supported in Meteor/Wekan. c.f. discussion in [here](https://github.com/YunoHost-Apps/wekan_ynh/issues/4). In the meantime, users can create accounts (in fact, they can create infinite number of accounts) manually, and need to login manually specifically in Wekan.
 
 ## Infos
 
@@ -28,3 +34,45 @@ Wekan is an open-source kanban board (task manager and organizer)
 **Private/Public mode:** In private mode, only authorized YunoHost members can access to the wekan. 
 
 **SSO/LDAP:** SSO and LDAP are not configured.
+
+## Configuration
+
+First registered user will be admin, and next ones normal users. If you want other admins too, you can change their permission to admin at Wekan Admin Panel.
+
+## Documentation
+
+ * Official documentation: https://github.com/wekan/wekan/wiki
+
+## YunoHost specific features
+
+#### Supported architectures
+
+* x86-64b - [![Build Status](https://ci-apps.yunohost.org/ci/logs/wekan%20%28Community%29.svg)](https://ci-apps.yunohost.org/ci/apps/wekan/)
+* ARMv8-A - Not supported
+* Jessie x86-64b - [![Build Status](https://ci-stretch.nohost.me/ci/logs/wekan%20%28Community%29.svg)](https://ci-stretch.nohost.me/ci/apps/wekan/)
+
+## Limitations
+
+* Any known limitations.
+
+## Links
+
+ * Report a bug: https://github.com/YunoHost-Apps/wekan_ynh/issues
+ * App website: https://wekan.github.io/
+ * Github App website: https://github.com/wekan/wekan
+ * YunoHost website: https://yunohost.org/
+
+---
+
+Developers info
+----------------
+
+**Only if you want to use a testing branch for coding, instead of merging directly into master.**
+Please do your pull request to the [testing branch](https://github.com/YunoHost-Apps/wekan_ynh/tree/testing).
+
+To try the testing branch, please proceed like that.
+```
+sudo yunohost app install https://github.com/YunoHost-Apps/wekan_ynh/tree/testing --debug
+or
+sudo yunohost app upgrade wekan -u https://github.com/YunoHost-Apps/wekan_ynh/tree/testing --debug
+```
diff --git a/check_process b/check_process
index 130e18e..26fa846 100644
--- a/check_process
+++ b/check_process
@@ -1,5 +1,3 @@
-# See here for more informations
-# https://github.com/YunoHost/package_check#syntax-check_process-file
 ;; Test complet
 	; Manifest
 		domain="domain.tld"	(DOMAIN)
@@ -22,9 +20,10 @@
 	Level 1=auto
 	Level 2=auto
 	Level 3=auto
-# Level 4: 
+# Level 4: If the app supports LDAP and SSOwat, turn level 4 to '1' and add a link to an issue or a part of your code to show it.
+# If the app does not use LDAP nor SSOwat, and can't use them, turn level 4 to 'na' and explain as well.
+	#LDAP to be implemented in wekan_ynh: https://github.com/wekan/wekan/wiki/LDAP
 	Level 4=0
-# Level 5: 
 	Level 5=auto
 	Level 6=auto
 	Level 7=auto
diff --git a/conf/app.src b/conf/app.src
index 61359cd..0b7bb83 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -5,4 +5,4 @@ SOURCE_SUM=1956dd19f17d76a6d820a15bcf93a3eb12172f9f5cb1dd40d9925b977e8f930d
 SOURCE_SUM_PRG=sha256sum
 ARCH_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
-SOURCE_FILENAME=wekan-1.07.tar.gz
+SOURCE_FILENAME=
diff --git a/conf/systemd.service b/conf/systemd.service
index d60488e..0fb4618 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -7,11 +7,10 @@ After=network.target mongodb.service
 Type=simple
 User=__APP__
 Group=__APP__
-ExecStartPre=__NODEJS__
 Environment="PATH=__ENV_PATH__"
 Environment=NODE_ENV=production
 Environment=MONGO_URL=mongodb://127.0.0.1:27017/__DB_NAME__
-Environment=ROOT_URL=https://__DOMAIN____URI__ PORT=__PORT__
+Environment=ROOT_URL=https://__DOMAIN_URI__ PORT=__PORT__
 WorkingDirectory=__FINALPATH__
 ExecStart=/opt/node_n/bin/node __FINALPATH__/main.js
 Restart=on-failure
diff --git a/manifest.json b/manifest.json
index 98c2599..13cf267 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,11 +2,11 @@
     "name": "Wekan",
     "id": "wekan",
     "packaging_format": 1,
-    "version": "1.07~ynh2",
     "description": {
         "en": "Trello-like kanban",
         "fr": "Un kanban similaire à Trello"
     },
+    "version": "2.09~ynh1",
     "url": "https://wekan.io",
     "license": "MIT",
     "maintainer": {
@@ -19,8 +19,7 @@
     },
     "multi_instance": true,
     "services": [
-        "nginx",
-        "mongod"
+        "nginx"
     ],
     "arguments": {
         "install" : [
diff --git a/scripts/_common.sh b/scripts/_common.sh
new file mode 100644
index 0000000..b905339
--- /dev/null
+++ b/scripts/_common.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+#=================================================
+# PERSONAL HELPERS
+#=================================================
+
+#=================================================
+# EXPERIMENTAL HELPERS
+#=================================================
+
+#=================================================
+# FUTURE OFFICIAL HELPERS
+#=================================================
diff --git a/scripts/_future.sh b/scripts/_future.sh
deleted file mode 100644
index 44bf9a9..0000000
--- a/scripts/_future.sh
+++ /dev/null
@@ -1,217 +0,0 @@
-
-
-log() {
-  echo "${1}"
-}
-
-info() {
-  log "[INFO] ${1}"
-}
-
-warn() {
-  log "[WARN] ${1}"
-}
-
-err() {
-  log "[ERR] ${1}"
-}
-to_logs() {
-
-  # When yunohost --verbose or bash -x
-  if $_ISVERBOSE; then
-    cat
-  else
-    cat > /dev/null
-  fi
-}
-
-read_json () {
-    sudo python3 -c "import sys, json;print(json.load(open('$1'))['$2'])"
-}
-
-read_manifest () {
-    if [ -f '../manifest.json' ] ; then
-        read_json '../manifest.json' "$1"
-    else
-        read_json '../settings/manifest.json' "$1"
-    fi
-}
-abort_if_up_to_date () {
-    version=$(read_json "/etc/yunohost/apps/$YNH_APP_INSTANCE_NAME/manifest.json" 'version' 2> /dev/null || echo '20160501-7')
-    last_version=$(read_manifest 'version')
-    if [ "${version}" = "${last_version}" ]; then
-        info "Up-to-date, nothing to do"
-        ynh_die "" 0
-    fi
-}
-
-
-
-#=================================================
-# NODEJS
-#=================================================
-
-# INFOS
-# n (Node version management) utilise la variable PATH pour stocker le path de la version de node à utiliser.
-# C'est ainsi qu'il change de version
-# ynh_install_nodejs installe la version de nodejs demandée en argument, avec n
-# ynh_use_nodejs active une version de nodejs dans le script courant
-# 3 variables sont mises à disposition, et 2 sont stockées dans la config de l'app
-# - nodejs_path: Le chemin absolu de cette version de node
-# Utilisé pour des appels directs à node.
-# - nodejs_version: Simplement le numéro de version de nodejs pour cette application
-# - nodejs_use_version: Un alias pour charger une version de node dans le shell courant.
-# Utilisé pour démarrer un service ou un script qui utilise node ou npm
-# Dans ce cas, c'est $PATH qui contient le chemin de la version de node. Il doit être propagé sur les autres shell si nécessaire.
-
-n_install_dir="/opt/node_n"
-node_version_path="/opt/node_n/n/versions/node"
-# N_PREFIX est le dossier de n, il doit être chargé dans les variables d'environnement pour n.
-export N_PREFIX="$n_install_dir"
-
-ynh_use_nodejs () {
-    nodejs_version=$(ynh_app_setting_get $app nodejs_version)
-
-    load_n_path="[[ :$PATH: == *\":$n_install_dir/bin:\"* ]] || PATH=\"$n_install_dir/bin:$PATH\"; N_PREFIX="$n_install_dir""
-
-    nodejs_use_version="$n_install_dir/bin/n -q $nodejs_version"
-
-    # "Load" a version of node
-    eval $load_n_path; $nodejs_use_version
-
-    # Get the absolute path of this version of node
-    nodejs_path="$(n bin $nodejs_version)"
-
-    # Make an alias for node use
-    ynh_node_exec="eval $load_n_path; n use $nodejs_version"
-}
-
-ynh_install_nodejs () {
-    # Use n, https://github.com/tj/n to manage the nodejs versions
-    nodejs_version="$1"
-    local n_install_script="https://git.io/n-install"
-
-    # Create $n_install_dir
-    mkdir -p "$n_install_dir"
-
-    # Load n path in PATH
-    CLEAR_PATH="$n_install_dir/bin:$PATH"
-    # Remove /usr/local/bin in PATH in case of node has already setup.
-    PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
-
-    # Move an existing node binary, to avoid to block n.
-    test -x /usr/bin/node && mv /usr/bin/node /usr/bin/node_n
-    test -x /usr/bin/npm && mv /usr/bin/npm /usr/bin/npm_n
-
-    # If n is not previously setup, install it
-    n --version > /dev/null 2>&1 || \
-    (curl -sL $n_install_script | N_PREFIX=$N_PREFIX bash -s -- -y - 2>&1 )
-
-    # Modify the default N_PREFIX in n script
-    ynh_replace_string "^N_PREFIX=\${N_PREFIX-.*}$" "N_PREFIX=\${N_PREFIX-$N_PREFIX}" "$n_install_dir/bin/n"
-
-    # Restore /usr/local/bin in PATH
-    PATH=$CLEAR_PATH
-
-    # And replace the old node binary.
-    test -x /usr/bin/node_n && mv /usr/bin/node_n /usr/bin/node
-    test -x /usr/bin/npm_n && mv /usr/bin/npm_n /usr/bin/npm
-
-    # Install the requested version of nodejs
-    n $nodejs_version
-
-    # Find the last "real" version for this major version of node.
-    real_nodejs_version=$(find $node_version_path/$nodejs_version* -maxdepth 0 | sort --version-sort | tail --lines=1)
-    real_nodejs_version=$(basename $real_nodejs_version)
-
-    # Create a symbolic link for this major version. If the file doesn't already exist
-    if [ ! -e "$node_version_path/$nodejs_version" ]
-    then
-        ln --symbolic --force --no-target-directory $node_version_path/$real_nodejs_version $node_version_path/$nodejs_version
-    fi
-
-    # Store the ID of this app and the version of node requested for it
-    echo "$YNH_APP_ID:$nodejs_version" | tee --append "$n_install_dir/ynh_app_version"
-
-    # Store nodejs_version into the config of this app
-    ynh_app_setting_set $app nodejs_version $nodejs_version
-
-    # Build the update script and set the cronjob
-    ynh_cron_upgrade_node
-
-    ynh_use_nodejs
-}
-
-ynh_remove_nodejs () {
-    ynh_use_nodejs
-
-    # Remove the line for this app
-    sed --in-place "/$YNH_APP_ID:$nodejs_version/d" "$n_install_dir/ynh_app_version"
-
-    # If none another app uses this version of nodejs, remove it.
-    if ! grep --quiet "$nodejs_version" "$n_install_dir/ynh_app_version"
-    then
-        n rm $nodejs_version
-    fi
-
-    # If none another app uses n, remove n
-    if [ ! -s "$n_install_dir/ynh_app_version" ]
-    then
-        ynh_secure_remove "$n_install_dir"
-        ynh_secure_remove "/usr/local/n"
-        sed --in-place "/N_PREFIX/d" /root/.bashrc
-	rm -f /etc/cron.daily/node_update
-    fi
-}
-
-ynh_cron_upgrade_node () {
-    # Build the update script
-    cat > "$n_install_dir/node_update.sh" << EOF
-#!/bin/bash
-
-version_path="$node_version_path"
-n_install_dir="$n_install_dir"
-
-# Log the date
-date
-
-# List all real installed version of node
-all_real_version="\$(find \$version_path/* -maxdepth 0 -type d | sed "s@\$version_path/@@g")"
-
-# Keep only the major version number of each line
-all_real_version=\$(echo "\$all_real_version" | sed 's/\..*\$//')
-
-# Remove double entries
-all_real_version=\$(echo "\$all_real_version" | sort --unique)
-
-# Read each major version
-while read version
-do
-    echo "Update of the version \$version"
-    sudo \$n_install_dir/bin/n \$version
-
-    # Find the last "real" version for this major version of node.
-    real_nodejs_version=\$(find \$version_path/\$version* -maxdepth 0 | sort --version-sort | tail --lines=1)
-    real_nodejs_version=\$(basename \$real_nodejs_version)
-
-    # Update the symbolic link for this version
-    sudo ln --symbolic --force --no-target-directory \$version_path/\$real_nodejs_version \$version_path/\$version
-done <<< "\$(echo "\$all_real_version")"
-EOF
-
-    chmod +x "$n_install_dir/node_update.sh"
-
-    # Build the cronjob
-    cat > "/etc/cron.daily/node_update" << EOF
-#!/bin/bash
-
-$n_install_dir/node_update.sh >> $n_install_dir/node_update.log
-EOF
-
-    chmod +x "/etc/cron.daily/node_update"
-}
-
-ynh_version_gt ()
-{
-    dpkg --compare-versions "$1" gt "$2"
-}
diff --git a/scripts/backup b/scripts/backup
index 1d0109b..6f2744f 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -5,37 +5,66 @@
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
+
+source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
 # MANAGE SCRIPT FAILURE
 #=================================================
 
+ynh_clean_setup () {
+	### Remove this function if there's nothing to clean before calling the remove script.
+	true
+}
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
 #=================================================
 # LOAD SETTINGS
 #=================================================
+ynh_print_info "Loading installation settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
 final_path=$(ynh_app_setting_get $app final_path)
 domain=$(ynh_app_setting_get $app domain)
+db_name=$(ynh_app_setting_get $app db_name)
 
 #=================================================
 # STANDARD BACKUP STEPS
 #=================================================
-# BACKUP OF THE MAIN DIR OF THE APP
+# BACKUP THE APP MAIN DIR
 #=================================================
+ynh_print_info "Backing up the main app directory..."
 
 ynh_backup "$final_path"
+
+#=================================================
+# BACKUP THE NGINX CONFIGURATION
+#=================================================
+ynh_print_info "Backing up nginx web server configuration..."
+
 ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf"
+
+#=================================================
+# BACKUP THE MONGODB DATABASE
+#=================================================
+ynh_print_info "Backing up the MongoDB database..."
+
+mongodump --db "$db_name" -o "./dump"
+
+#=================================================
+# SPECIFIC BACKUP
+#=================================================
+# BACKUP SYSTEMD
+#=================================================
+ynh_print_info "Backing up systemd configuration..."
+
 ynh_backup "/etc/systemd/system/$app.service"
 
 #=================================================
-# BACKUP OF MONGODB
+# END OF SCRIPT
 #=================================================
 
-mongodump --db "$app" -o "./dump"
-
+ynh_print_info "Backup script completed for $app. (YunoHost will then actually copy those files to the archive)."
diff --git a/scripts/install b/scripts/install
index ab1bc82..90daf64 100755
--- a/scripts/install
+++ b/scripts/install
@@ -1,39 +1,60 @@
 #!/bin/bash
+
 #=================================================
 # GENERIC START
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
-source _future.sh
+
+source _common.sh
 source ynh_systemd_action
 source /usr/share/yunohost/helpers
 
 #=================================================
 # MANAGE SCRIPT FAILURE
 #=================================================
+
+ynh_clean_setup () {
+	### Remove this function if there's nothing to clean before calling the remove script.
+	true
+}
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
-
 #=================================================
 # RETRIEVE ARGUMENTS FROM THE MANIFEST
 #=================================================
+
 domain=$YNH_APP_ARG_DOMAIN
 path_url=$YNH_APP_ARG_PATH
 is_public=$YNH_APP_ARG_IS_PUBLIC
 
+### If it's a multi-instance app, meaning it can be installed several times independently
+### The id of the app as stated in the manifest is available as $YNH_APP_ID
+### The instance number is available as $YNH_APP_INSTANCE_NUMBER (equals "1", "2", ...)
+### The app instance name is available as $YNH_APP_INSTANCE_NAME
+###    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
+###    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
+###    - ynhexample__{N} for the subsequent installations, with N=3,4, ...
+### The app instance name is probably what interests you most, since this is
+### guaranteed to be unique. This is a good unique identifier to define installation path,
+### db names, ...
 app=$YNH_APP_INSTANCE_NAME
 
 #=================================================
 # CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
 #=================================================
+ynh_print_info "Validating installation parameters..."
 
 # Check machine architecture (in particular, we don't support ARM and 32bit machines)
 [[ $(uname -m) == "x86_64" ]] || ynh_die "Sorry, but this app can only be installed on a x86, 64 bits machine :("
 
+### If the app uses nginx as web server (written in HTML/PHP in most cases), the final path should be "/var/www/$app".
+### If the app provides an internal web server (or uses another application server such as uwsgi), the final path should be "/opt/yunohost/$app"
 final_path=/var/www/$app
 test ! -e "$final_path" || ynh_die "This path already contains a folder"
 
+# Normalize the url path syntax
 path_url=$(ynh_normalize_url_path $path_url)
 
 # Register (book) web path
@@ -42,19 +63,41 @@ ynh_webpath_register $app $domain $path_url
 #=================================================
 # STORE SETTINGS FROM MANIFEST
 #=================================================
+ynh_print_info "Storing installation settings..."
+
+ynh_app_setting_set $app domain $domain
+ynh_app_setting_set $app path $path_url
 ynh_app_setting_set $app is_public $is_public
 
+#=================================================
+# STANDARD MODIFICATIONS
 #=================================================
 # FIND AND OPEN A PORT
 #=================================================
+ynh_print_info "Configuring firewall..."
+
+### Use these lines if you have to open a port for the application
+### `ynh_find_port` will find the first available port starting from the given port.
+### If you're not using these lines:
+###		- Remove the section "CLOSE A PORT" in the remove script
 
 # Find a free port
-port=$(ynh_find_port 8081)
+port=$(ynh_find_port 8095)
+# Open this port
+#ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $port
 ynh_app_setting_set $app port $port
 
 #=================================================
 # INSTALL DEPENDENCIES
 #=================================================
+ynh_print_info "Installing dependencies..."
+
+### `ynh_install_app_dependencies` allows you to add any "apt" dependencies to the package.
+### Those deb packages will be installed as dependencies of this package.
+### If you're not using this helper:
+###		- Remove the section "REMOVE DEPENDENCIES" in the remove script
+###		- As well as the section "REINSTALL DEPENDENCIES" in the restore script
+###		- And the section "UPGRADE DEPENDENCIES" in the upgrade script
 
 ynh_print_info "Installing nodejs ..."
 ynh_install_nodejs 8.9.3
@@ -63,57 +106,99 @@ ynh_print_info "Installing mongodb dependencies ..."
 ynh_install_app_dependencies "mongodb mongodb-server"
 
 #=================================================
-# DOWNLOAD, CHECK AND UNPACK SOURCE
+# Start MONGODB
 #=================================================
 
-ynh_print_info "Setting up Wekan's sources ..."
-ynh_app_setting_set $app final_path $final_path
-# Download, check integrity, uncompress and patch the source from app.src
-# For this app sources are in app subdirectory 
-ynh_setup_source "$final_path"
-
-#=================================================
-# NGINX CONFIGURATION
-#=================================================
-
-# Create a dedicated nginx config
-ynh_print_info "Configuring nginx ..."
-ynh_add_nginx_config
-
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-
-# Create a system user
-ynh_system_user_create $app "$final_path"
-
-#=================================================
-# SPECIFIC SETUP
-#=================================================
-# Install wekan dependencies
-ynh_print_info "Installing npm dependencies ..."
-chown -R $app $final_path
-pushd $final_path/programs/server
-ynh_use_nodejs
-npm install
-popd
-
 # Start mogodb
 ynh_print_info "Starting mongodb ..."
 systemctl enable mongodb
 systemctl restart mongodb
 
+#=================================================
+# CREATE A MONGODB DATABASE
+#=================================================
+ynh_print_info "Creating a MongoDB database..."
+
+### 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 $app)
+ynh_app_setting_set $app db_name $db_name
+#ynh_mysql_setup_db $db_name $db_name
+
+#=================================================
+# DOWNLOAD, CHECK AND UNPACK SOURCE
+#=================================================
+ynh_print_info "Setting up source files..."
+
+### `ynh_setup_source` is used to install an app from a zip or tar.gz file,
+### downloaded from an upstream source, like a git repository.
+### `ynh_setup_source` use the file conf/app.src
+
+ynh_app_setting_set $app final_path $final_path
+# Download, check integrity, uncompress and patch the source from app.src
+ynh_setup_source "$final_path"
+
+#=================================================
+# NGINX CONFIGURATION
+#=================================================
+ynh_print_info "Configuring nginx web server..."
+
+### `ynh_add_nginx_config` will use the file conf/nginx.conf
+
+# Create a dedicated nginx config
+ynh_add_nginx_config
+
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_print_info "Configuring system user..."
+
+# Create a system user
+ynh_system_user_create $app "$final_path"
+
+#=================================================
+# SPECIFIC SETUP
+#=================================================
+# INSTALL WEKAN NPM DEPENDENCIES
+#=================================================
+ynh_print_info "Installing wekan npm dependencies ..."
+
+# Install wekan dependencies
+chown -R $app $final_path
+pushd $final_path/programs/server
+    ynh_use_nodejs
+    npm install
+popd
+
 #=================================================
 # SETUP SYSTEMD
 #=================================================
+ynh_print_info "Configuring a systemd service..."
+
+### `ynh_systemd_config` is used to configure a systemd script for an app.
+### It can be used for apps that use sysvinit (with adaptation) or systemd.
+### Have a look at the app to be sure this app needs a systemd script.
+### `ynh_systemd_config` will use the file conf/systemd.service
+### If you're not using these lines:
+###		- You can remove those files in conf/.
+###		- Remove the section "BACKUP SYSTEMD" in the backup script
+###		- Remove also the section "STOP AND REMOVE SERVICE" in the remove script
+###		- As well as the section "RESTORE SYSTEMD" in the restore script
+###		- And the section "SETUP SYSTEMD" in the upgrade script
+
 # Create a dedicated systemd config
 ynh_print_info "Adding wekan systemd service ..."
-ynh_replace_string "__NODEJS__"   "$nodejs_use_version" "../conf/systemd.service"
-ynh_replace_string "__ENV_PATH__" "$PATH"               "../conf/systemd.service"
-ynh_replace_string "__DB_NAME__"  "$app"                "../conf/systemd.service"
-ynh_replace_string "__URI__"      "$path_url"          "../conf/systemd.service"
+ynh_replace_string "__ENV_PATH__" "$nodejs_path"               "../conf/systemd.service"
+ynh_replace_string "__DB_NAME__"  "$db_name"                "../conf/systemd.service"
+ynh_replace_string "__DOMAIN_URI__"      "$domain$path_url"          "../conf/systemd.service"
 ynh_replace_string "__PORT__"     "$port"               "../conf/systemd.service"
-ynh_replace_string "__DOMAIN__"   "$domain"             "../conf/systemd.service"
 ynh_add_systemd_config
 
 #=================================================
@@ -122,31 +207,46 @@ ynh_add_systemd_config
 # SECURE FILES AND DIRECTORIES
 #=================================================
 ynh_print_info "Fixing permissions ..."
+
+### For security reason, any app should set the permissions to root: before anything else.
+### Then, if write authorization is needed, any access should be given only to directories
+### that really need such authorization.
 # Set strong right permissions to app files
 chown -R $app: "$final_path"
 chmod -R 640 "$final_path"
 find "$final_path" -type d -print0 | xargs -0 chmod 750
 
 #=================================================
-# ADD SERVICE IN ADMIN PANEL
+# ADVERTISE SERVICE IN ADMIN PANEL
 #=================================================
+
+### `yunohost service add` is a CLI yunohost command to add a service in the admin panel.
+### You'll find the service in the 'services' section of YunoHost admin panel.
+### This CLI command would be useless if the app does not have any services (systemd or sysvinit)
+### If you're not using these lines:
+###		- You can remove these files in conf/.
+###		- Remove the section "REMOVE SERVICE FROM ADMIN PANEL" in the remove script
+###		- As well as the section ADVERTISE SERVICE IN ADMIN PANEL" in the restore script
+
 yunohost service add mongodb --log "/var/log/mongodb/mongodb.log"
 yunohost service add $app
 
 #=================================================
 # SETUP SSOWAT
 #=================================================
+ynh_print_info "Configuring SSOwat..."
 
-# Make app public if necessary or protect it
+# Make app public if necessary
 if [ $is_public -eq 1 ]
 then
-    # unprotected_uris allows SSO credentials to be passed anyway.
-    ynh_app_setting_set "$app" unprotected_uris "/"
+	# unprotected_uris allows SSO credentials to be passed anyway.
+	ynh_app_setting_set $app unprotected_uris "/"
 fi
 
 #=================================================
 # RELOAD NGINX
 #=================================================
+ynh_print_info "Reloading nginx web server..."
 
 systemctl reload nginx
 
@@ -156,3 +256,9 @@ systemctl reload nginx
 
 ynh_systemd_action --action=start --service_name=$app --log_path="systemd" --line_match="Finishing add-custom-html-before-body-end migration"
 sleep 10
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info "Installation of $app completed"
diff --git a/scripts/remove b/scripts/remove
index f0cfa95..f08fad7 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -1,72 +1,109 @@
 #!/bin/bash
+
 #=================================================
-# GENERIC STARTING
+# GENERIC START
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
-source _future.sh
+
+source _common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
 # LOAD SETTINGS
 #=================================================
-readonly app=$YNH_APP_INSTANCE_NAME
-readonly domain=$(ynh_app_setting_get "$app" domain)
-readonly final_path=$(ynh_app_setting_get "$app" final_path)
+ynh_print_info "Loading installation settings..."
+
+app=$YNH_APP_INSTANCE_NAME
+
+domain=$(ynh_app_setting_get $app domain)
+port=$(ynh_app_setting_get $app port)
+db_name=$(ynh_app_setting_get $app db_name)
+
+final_path=$(ynh_app_setting_get $app final_path)
 
 #=================================================
 # STANDARD REMOVE
 #=================================================
-# STOP AND REMOVE SERVICE
+# REMOVE SERVICE FROM ADMIN PANEL
 #=================================================
 
-ynh_remove_systemd_config
-
-#=================================================
-# DISABLE SERVICE IN ADMIN PANEL
-#=================================================
-
-if yunohost service status | grep -q $app   # Test l'existence du service dans Yunohost
+# Remove a service from the admin panel, added by `yunohost service add`
+if yunohost service status | grep -q $app
 then
-    echo "Remove $app service"
-    yunohost service remove $app
+	ynh_print_info "Removing $app service"
+	yunohost service remove $app
 fi
 
 #=================================================
-# REMOVE DB
+# STOP AND REMOVE SERVICE
 #=================================================
-mongo $app --eval "db.dropDatabase()"
+ynh_print_info "Stopping and removing the systemd service"
+
+# Remove the dedicated systemd config
+ynh_remove_systemd_config
+
+#=================================================
+# REMOVE THE MONGODB DATABASE
+#=================================================
+ynh_print_info "Removing the MongoDB database"
+
+# Remove a database if it exists, along with the associated user
+mongo $db_name --eval "db.dropDatabase()"
 
 #=================================================
 # REMOVE DEPENDENCIES
 #=================================================
+ynh_print_info "Removing dependencies"
 
+# Remove metapackage and its dependencies
 ynh_remove_app_dependencies
 
 #=================================================
 # REMOVE NODEJS
 #=================================================
+ynh_print_info "Removing nodejs"
 
 ynh_remove_nodejs
 
 #=================================================
-# REMOVE THE MAIN DIR OF THE APP
+# REMOVE APP MAIN DIR
 #=================================================
+ynh_print_info "Removing app main directory"
 
-ynh_secure_remove "/var/www/$app"
+# Remove the app directory securely
+ynh_secure_remove "$final_path"
 
 #=================================================
-# REMOVE THE NGINX CONFIGURATION
+# REMOVE NGINX CONFIGURATION
 #=================================================
+ynh_print_info "Removing nginx web server configuration"
 
-ynh_remove_nginx_config 
+# Remove the dedicated nginx config
+ynh_remove_nginx_config
 
 #=================================================
-# GENERIC FINALISATION
+# CLOSE A PORT
+#=================================================
+
+if yunohost firewall list | grep -q "\- $port$"
+then
+	ynh_print_info "Closing port $port"
+	ynh_exec_warn_less yunohost firewall disallow TCP $port
+fi
+
+#=================================================
+# GENERIC FINALIZATION
 #=================================================
 # REMOVE DEDICATED USER
 #=================================================
+ynh_print_info "Removing the dedicated system user"
 
+# Delete a system user
 ynh_system_user_delete $app
 
+#=================================================
+# END OF SCRIPT
+#=================================================
 
+ynh_print_info "Removal of $app completed"
diff --git a/scripts/restore b/scripts/restore
index 41a87f1..11c87b7 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -5,7 +5,8 @@
 #=================================================
 # IMPORT GENERIC HELPERS
 #=================================================
-source ../settings/scripts/_future.sh
+
+source ../settings/scripts/_common.sh
 source ../settings/scripts/ynh_systemd_action
 source /usr/share/yunohost/helpers
 
@@ -13,12 +14,17 @@ source /usr/share/yunohost/helpers
 # MANAGE SCRIPT FAILURE
 #=================================================
 
+ynh_clean_setup () {
+	#### Remove this function if there's nothing to clean before calling the remove script.
+	true
+}
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
 #=================================================
 # LOAD SETTINGS
 #=================================================
+ynh_print_info "Loading settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -26,11 +32,13 @@ domain=$(ynh_app_setting_get $app domain)
 path_url=$(ynh_app_setting_get $app path)
 is_public=$(ynh_app_setting_get $app is_public)
 final_path=$(ynh_app_setting_get $app final_path)
+db_name=$(ynh_app_setting_get $app db_name)
 port=$(ynh_app_setting_get $app final_path)
 
 #=================================================
 # CHECK IF THE APP CAN BE RESTORED
 #=================================================
+ynh_print_info "Validating restoration parameters..."
 
 ynh_webpath_available $domain $path_url \
 	|| ynh_die "Path not available: ${domain}${path_url}"
@@ -38,75 +46,81 @@ test ! -d $final_path \
 	|| ynh_die "There is already a directory: $final_path "
 
 #=================================================
-# STANDARD RESTORE STEPS
+# STANDARD RESTORATION STEPS
 #=================================================
-ynh_restore
-
-#=================================================
-# CREATE DEDICATED USER
+# RESTORE THE NGINX CONFIGURATION
 #=================================================
 
-# Create a system user
+ynh_restore_file "/etc/nginx/conf.d/$domain.d/$app.conf"
+
+#=================================================
+# RESTORE THE APP MAIN DIR
+#=================================================
+ynh_print_info "Restoring the app main directory..."
+
+ynh_restore_file "$final_path"
+
+#=================================================
+# RECREATE THE DEDICATED USER
+#=================================================
+ynh_print_info "Recreating the dedicated system user..."
+
+# Create the dedicated user (if not existing)
 ynh_system_user_create $app "$final_path"
 
+#=================================================
+# RESTORE USER RIGHTS
+#=================================================
+
+# Restore permissions on app files
+chown -R $app: "$final_path"
+chmod -R 640 "$final_path"
+find "$final_path" -type d -print0 | xargs -0 chmod 750
 
 #=================================================
-# INSTALL DEPENDENCIES
+# SPECIFIC RESTORATION
 #=================================================
+# REINSTALL DEPENDENCIES
+#=================================================
+ynh_print_info "Reinstalling dependencies..."
+
+# Define and install dependencies
 ynh_install_nodejs 8.9.3
 
 # Install mongodb
 ynh_install_app_dependencies "mongodb mongodb-server"
 
 #=================================================
-# RESTORE DB
+# RESTORE THE MONGODB DATABASE
 #=================================================
+ynh_print_info "Restoring the MongoDB database..."
+
 # Start mogodb
 systemctl enable mongodb
 systemctl start mongodb
-mongorestore --db $app ./dump/$app
+mongorestore --db $db_name ./dump/$db_name
 
 #=================================================
-# SPECIFIC SETUP
+# RESTORE SYSTEMD
 #=================================================
+ynh_print_info "Restoring the systemd configuration..."
 
-# Install wekan dependencies
-#chown -R $app $final_path
-#pushd $final_path/programs/server
-#ynh_use_nodejs
-#npm install
-#popd
+ynh_restore_file "/etc/systemd/system/$app.service"
+systemctl enable $app.service
 
 #=================================================
-# GENERIC FINALIZATION
+# ADVERTISE SERVICE IN ADMIN PANEL
 #=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-# Set strong right permissions to app files
-chown -R $app: "$final_path"
-chmod -R 640 "$final_path"
-find "$final_path" -type d -print0 | xargs -0 chmod 750
 
-#=================================================
-# ADD SERVICE IN ADMIN PANEL
-#=================================================
 yunohost service add mongodb --log "/var/log/mongodb/mongodb.log"
 yunohost service add $app
 
 #=================================================
-# SETUP SSOWAT
-#=================================================
-
-# Make app public if necessary or protect it
-if [ $is_public -eq 1 ]
-then
-    # unprotected_uris allows SSO credentials to be passed anyway.
-    ynh_app_setting_set "$app" unprotected_uris "/"
-fi
-
+# GENERIC FINALIZATION
 #=================================================
 # RELOAD NGINX
 #=================================================
+ynh_print_info "Reloading nginx web server..."
 
 systemctl reload nginx
 
@@ -116,3 +130,9 @@ systemctl reload nginx
 
 ynh_systemd_action --action=start --service_name=$app --log_path="systemd" 
 sleep 10
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info "Restoration completed for $app"
diff --git a/scripts/upgrade b/scripts/upgrade
index 6d2d9cd..4f48cfa 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -6,13 +6,15 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-source _future.sh
+source _common.sh
+source ynh_package_version
 source ynh_systemd_action
 source /usr/share/yunohost/helpers
 
 #=================================================
 # LOAD SETTINGS
 #=================================================
+ynh_print_info "Loading installation settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -20,11 +22,19 @@ domain=$(ynh_app_setting_get $app domain)
 path_url=$(ynh_app_setting_get $app path)
 is_public=$(ynh_app_setting_get $app is_public)
 final_path=$(ynh_app_setting_get $app final_path)
+db_name=$(ynh_app_setting_get $app db_name)
 port=$(ynh_app_setting_get $app port)
 
+if [ -z "$db_name" ]
+then
+    db_name=$app
+    ynh_app_setting_set "$app" db_name "$db_name"
+fi
+
 #=================================================
-# Check version
+# CHECK VERSION
 #=================================================
+
 abort_if_up_to_date
 # previous function is what defines 'version', more precisely the 'previous version'
 previous_version="${version}"
@@ -32,35 +42,42 @@ previous_version="${version}"
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
+ynh_print_info "Backing up the app before upgrading (may take a while)..."
 
-ynh_backup_before_upgrade	# Backup the current version of the app
+# Backup the current version of the app
+ynh_backup_before_upgrade
 ynh_clean_setup () {
-	ynh_restore_upgradebackup	# restore it if the upgrade fails
+	# restore it if the upgrade fails
+	ynh_restore_upgradebackup
 }
-ynh_abort_if_errors	# Exit if an error occurs during the execution of the script
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
 
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
+ynh_print_info "Ensuring downward compatibility..."
 
 if ynh_version_gt "0.45-2" "${previous_version}" ; then
     ynh_replace_string "Environment=ROOT_URL=http://127.0.0.1:$port$path_url" "Environment=ROOT_URL=https://$domain$path_url/" "/etc/systemd/system/$app.service"
     systemctl daemon-reload
 fi
+
 if ynh_version_gt "0.45-3" "${previous_version}" ; then
     yunohost service add $app
 fi
+
 if ynh_version_gt "0.77-2" "${previous_version}" ; then
     ynh_install_nodejs 8.9.3
+	ynh_use_nodejs
     # Create a dedicated systemd config
-    ynh_replace_string "__NODEJS__"   "$nodejs_use_version" "../conf/systemd.service"
-    ynh_replace_string "__ENV_PATH__" "$PATH"               "../conf/systemd.service"
-    ynh_replace_string "__DB_NAME__"  "$app"                "../conf/systemd.service"
-    ynh_replace_string "__URI__"      "$path_url/"          "../conf/systemd.service"
+    ynh_replace_string "__ENV_PATH__" "$nodejs_path"               "../conf/systemd.service"
+    ynh_replace_string "__DB_NAME__"  "$db_name"                "../conf/systemd.service"
+    ynh_replace_string "__DOMAIN_URI__"      "$domain$path_url"          "../conf/systemd.service"
     ynh_replace_string "__PORT__"     "$port"               "../conf/systemd.service"
-    ynh_replace_string "__DOMAIN__"   "$domain"             "../conf/systemd.service"
     ynh_add_systemd_config
 fi
+
 if ynh_version_gt "1.07~ynh2" "${previous_version}" ; then
 
    # Replace mongodb packages
@@ -70,50 +87,79 @@ if ynh_version_gt "1.07~ynh2" "${previous_version}" ; then
    ynh_install_app_dependencies "mongodb mongodb-server"
    yunohost service remove mongod
    yunohost service add mongodb --log "/var/log/mongodb/mongodb.log"
+   ynh_use_nodejs
 
    # Gotta regen the systemd config because mongodb service name changed
-   nodejs_version=$(ynh_app_setting_get $app nodejs_version)
-   nodejs_use_version="$n_install_dir/bin/n -q $nodejs_version"
-   ynh_replace_string "__NODEJS__"   "$nodejs_use_version" "../conf/systemd.service"
-   ynh_replace_string "__ENV_PATH__" "$PATH"               "../conf/systemd.service"
-   ynh_replace_string "__DB_NAME__"  "$app"                "../conf/systemd.service"
-   ynh_replace_string "__URI__"      "$path_url/"          "../conf/systemd.service"
+   ynh_replace_string "__ENV_PATH__" "$nodejs_path"               "../conf/systemd.service"
+   ynh_replace_string "__DB_NAME__"  "$db_name"                "../conf/systemd.service"
+    ynh_replace_string "__DOMAIN_URI__"      "$domain$path_url"          "../conf/systemd.service"
    ynh_replace_string "__PORT__"     "$port"               "../conf/systemd.service"
-   ynh_replace_string "__DOMAIN__"   "$domain"             "../conf/systemd.service"
    ynh_add_systemd_config
 fi
 
+#=================================================
+# CHECK THE PATH
+#=================================================
+
+# Normalize the URL path syntax
+path_url=$(ynh_normalize_url_path $path_url)
 
 #=================================================
 # STANDARD UPGRADE STEPS
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
+ynh_print_info "Upgrading source files..."
 
 # Download, check integrity, uncompress and patch the source from app.src
-# For this app sources are in app subdirectory 
 ynh_setup_source "$final_path"
 
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_print_info "Making sure dedicated system user exists..."
+
+# Create a dedicated user (if not existing)
+ynh_system_user_create $app
+
 #=================================================
 # GENERIC FINALIZATION
 #=================================================
 # SECURE FILES AND DIRECTORIES
 #=================================================
 
-# Set strong right permissions to app files
+# Set permissions on app files
 chown -R $app: "$final_path"
 chmod -R 640 "$final_path"
 find "$final_path" -type d -print0 | xargs -0 chmod 750
 
+#=================================================
+# INSTALL WEKAN NPM DEPENDENCIES
+#=================================================
+ynh_print_info "Installing wekan npm dependencies ..."
+
 # Relaunch a npm install
 pushd $final_path/programs/server
-ynh_use_nodejs
-npm install
+    ynh_use_nodejs
+    npm install
 popd
 
+#=================================================
+# SETUP SSOWAT
+#=================================================
+ynh_print_info "Upgrading SSOwat configuration..."
+
+# Make app public if necessary
+if [ $is_public -eq 1 ]
+then
+	# unprotected_uris allows SSO credentials to be passed anyway
+	ynh_app_setting_set $app unprotected_uris "/"
+fi
+
 #=================================================
 # RELOAD NGINX
 #=================================================
+ynh_print_info "Reloading nginx web server..."
 
 systemctl reload nginx
 
@@ -123,3 +169,9 @@ systemctl reload nginx
 
 ynh_systemd_action --action=restart --service_name=$app --log_path="systemd" 
 sleep 10
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info "Upgrade of $app completed"
diff --git a/scripts/ynh_package_version b/scripts/ynh_package_version
new file mode 100644
index 0000000..816f97a
--- /dev/null
+++ b/scripts/ynh_package_version
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+read_json () {
+    sudo python3 -c "import sys, json;print(json.load(open('$1'))['$2'])"
+}
+
+read_manifest () {
+    if [ -f '../manifest.json' ] ; then
+        read_json '../manifest.json' "$1"
+    else
+        read_json '../settings/manifest.json' "$1"
+    fi
+}
+abort_if_up_to_date () {
+    version=$(read_json "/etc/yunohost/apps/$YNH_APP_INSTANCE_NAME/manifest.json" 'version' 2> /dev/null || echo '20160501-7')
+    last_version=$(read_manifest 'version')
+    if [ "${version}" = "${last_version}" ]; then
+        info "Up-to-date, nothing to do"
+        ynh_die "" 0
+    fi
+}
+
+ynh_version_gt ()
+{
+    dpkg --compare-versions "$1" gt "$2"
+}