diff --git a/requirements-3.7.txt b/requirements-3.7.txt
index 60d8cd144..ccaf72da7 100644
--- a/requirements-3.7.txt
+++ b/requirements-3.7.txt
@@ -1,61 +1,34 @@
-alembic==1.6.5
-astroid==2.6.2
-Babel==2.9.1
-blinker==1.4
-certifi==2021.5.30
-chardet==4.0.0
-click==8.0.1
-cracklib==2.9.3
-dnspython==2.1.0
-dominate==2.6.0
-email-validator==1.1.3
-Flask==2.0.1
-Flask-Babel==2.0.0
-Flask-Bootstrap==3.3.7.1
-Flask-Caching==1.10.1
-Flask-Login==0.5.0
-Flask-Mail==0.9.1
-Flask-Migrate==3.0.1
-Flask-Moment==1.0.1
-Flask-SQLAlchemy==2.5.1
-Flask-WTF==0.15.1
-greenlet==1.1.0
-html2text==2020.1.16
-icalendar==4.0.7
-idna==2.10
-importlib-metadata==4.6.1
-isort==5.9.2
-itsdangerous==2.0.1
-Jinja2==3.0.1
-lazy-object-proxy==1.6.0
-Mako==1.1.4
-MarkupSafe==2.0.1
-mccabe==0.6.1
-Pillow==8.3.1
-pkg-resources==0.0.0
-psycopg2==2.9.1
-pydot==1.4.2
-PyJWT==2.1.0
-pylibmc==1.6.1
-pylint==2.9.3
-pylint-flask-sqlalchemy==0.2.0
-pymemcache==3.5.0
-pyparsing==2.4.7
+asn1crypto==0.24.0
+certifi==2018.8.24
+chardet==3.0.4
+configparser==3.5.0b2
+cracklib==2.9.6
+cryptography==2.6.1
+docutils==0.14
+entrypoints==0.3
+enum34==1.1.6
+gyp==0.1
+icalendar==4.0.3
+idna==2.6
+ipaddress==1.0.17
+jaxml==3.1
+keyring==17.1.1
+keyrings.alt==3.1.1
+olefile==0.46
+Pillow==5.4.1
+psycopg2==2.7.7
+pycrypto==2.6.1
+Pygments==2.3.1
+PyGObject==3.30.4
+pyOpenSSL==19.0.0
 PyRSS2Gen==1.1
-python-dateutil==2.8.1
-python-dotenv==0.18.0
-python-editor==1.0.4
-pytz==2021.1
-reportlab==3.5.68
-requests==2.25.1
-six==1.16.0
-SQLAlchemy==1.4.20
-toml==0.10.2
-typed-ast==1.4.3
-typing-extensions==3.10.0.0
-urllib3==1.26.6
-visitor==0.1.3
-Werkzeug==2.0.1
-wrapt==1.12.1
-WTForms==2.3.3
-zipp==3.5.0
+python-dateutil==2.7.3
+pytz==2019.1
+pyxdg==0.25
+reportlab==3.5.13
+requests==2.21.0
+roman==2.0.0
+SecretStorage==2.3.1
+six==1.12.0
+urllib3==1.24.1
+virtualenv==15.1.0
diff --git a/tools/config.sh b/tools/config.sh
index c17c6c7e6..3e91d757e 100644
--- a/tools/config.sh
+++ b/tools/config.sh
@@ -44,7 +44,12 @@ else
 fi
 export PSQL
 
-# tcp port for SQL server (under Debian 4, 5432 or 5433 for 8.1 if 7.4 also installed !)
+# tcp port for SQL server 
 # Important note: if changed, you should probably also change it in
 #      sco_utils.py (SCO_DEFAULT_SQL_PORT).
 export POSTGRES_PORT=5432
+
+# ---
+echo "SCODOC_USER=$SCODOC_USER"
+echo "SCODOC_DIR=$SCODOC_DIR"
+echo "SCODOC_VAR_DIR=$SCODOC_VAR_DIR"
diff --git a/tools/install_debian10.sh b/tools/install_debian10.sh
index 1e9e7c4b8..d05352ede 100755
--- a/tools/install_debian10.sh
+++ b/tools/install_debian10.sh
@@ -1,11 +1,11 @@
 #!/bin/bash
 
 #
-# ScoDoc: install third-party software necessary for our installation
+# ScoDoc 8: install third-party software necessary for our installation
 # starting for a minimal Debian (Buster, 10.0) install.
 #
 # E. Viennet, Jun 2008, Apr 2009, Sept 2011, Sept 2013, Nov 2013, Mar 2017, Jul 2017, 
-# Jun 2019, Oct 2019, Dec 2020
+# Jun 2019, Oct 2019, Dec 2020, Jul 2021
 #
 
 source config.sh
@@ -27,65 +27,27 @@ then
 fi
 
 # ------------ Permissions & directories
-chown -R "$SCODOC_USER"."$SCODOC_GROUP" "${SCODOC_DIR}"
+change_scodoc_file_ownership
 
-
-# ------------ LOCALES
-echo 
-echo '---- Configuration des locales...'
-echo
-
-if [ ! -e /etc/locale.gen ]
-then
-    touch /etc/locale.gen
-fi
-
-
-for locname in en_US.UTF-8 en_US.ISO-8859-15 en_US.ISO-8859-1
-do
-  outname=$(echo ${locname//-/} | tr 'A-Z' 'a-z')
-  if [ "$(locale -a | grep -E -i ^${outname}$ | wc -l)" -lt 1 ]
-  then
-    echo adding $locname
-    echo "$locname ${locname##*.}" >> /etc/locale.gen
-  fi
-done
-
-/usr/sbin/locale-gen --keep-existing 
-
-# Voir si encore nécessaire avec ScoDoc8: ?
-if [ "$LANG" != "en_US.UTF-8" ]
-then
-   # ceci est necessaire a cause de postgresql 8.3 qui 
-   # cree son cluster lors de l'install avec la locale par defaut !
-   echo "Attention: changement de la locale par defaut"
-   mv /etc/default/locale /etc/default/locale.orig
-   echo "LANG=\"en_US.UTF-8\"" > /etc/default/locale
-   export LANG=en_US.UTF-8
-fi
-echo 'Done.'
-
-# ------------ AJOUT DES PAQUETS NECESSAIRES
+# ------------ AJOUT DES PAQUETS DEBIAN NECESSAIRES
 apt-get update
-apt-get -y install subversion curl cracklib-runtime
-apt-get -y install apache2 ssl-cert 
+apt-get -y install python3-dev
+apt-get -y install python3-venv
+apt-get -y install libpq-dev
+apt-get -y install libcrack2-dev
 apt-get -y install postgresql
+apt-get -y install curl
 apt-get -y install graphviz
 
-# ------------ INSTALL DES EXTENSIONS PYTHON (2.7)
+# ------------ INSTALL DES PAQUETS PYTHON (3.7)
 # ScoDoc8 uses pip in our env
-apt-get -y install python-docutils
-apt-get -y install python-psycopg2 
-apt-get -y install python-pyrss2gen 
-apt-get -y install python-pil python-reportlab 
-apt-get -y install python-cracklib # was python-crack
-apt-get -y install python-icalendar
-apt-get -y install python-requests
-
+source venv/bin/activate
+pip install wheel
+pip install -r requirements-3.7.txt
 
 # ------------
-SVNVERSION=$(cd ..; svnversion)
-SVERSION=$(curl --silent http://scodoc.iutv.univ-paris13.fr/scodoc-installmgr/version?mode=install\&svn="$SVNVERSION")
+GITCOMMIT=$(git rev-parse HEAD)
+SVERSION=$(curl --silent http://scodoc.iutv.univ-paris13.fr/scodoc-installmgr/version?mode=install\&commit="$GITCOMMIT")
 echo "$SVERSION" > "${SCODOC_VERSION_DIR}/scodoc.sn"
 
 
@@ -116,10 +78,19 @@ then
     yes | ufw enable
 fi
 
+# --- XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX ---
+echo
+echo "WARNING: version ScoDoc8 expérimentale"
+echo "Ne pas utiliser en production !"
+echo
+echo "Pour lancer le serveur de développement: voir README"
+exit 0
+# --- XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX ---
+
 # Nota: after this point, the network _may_ be unreachable 
 # (if firewall config is wrong)
 
-# ------------ CONFIG APACHE
+# ------------ CONFIG NGINX
 a2enmod ssl
 a2enmod proxy
 a2enmod proxy_http
diff --git a/tools/migrate_from_scodoc7.sh b/tools/migrate_from_scodoc7.sh
index 655614dfa..b8d9be8be 100755
--- a/tools/migrate_from_scodoc7.sh
+++ b/tools/migrate_from_scodoc7.sh
@@ -29,25 +29,10 @@ check_uid_root
 SCODOC7_HOME="/opt/scodoc"
 SCODOC7_DIR="${SCODOC7_HOME}/Products/ScoDoc"
 
-# --- 1. Utilisateur UNIX
-migrate_unix_user() {
-    if [ $(id -u "${SCODOC_USER}" &> /dev/null) ]
-    then
-        echo "Unix user ${SCODOC_USER} exists"
-    else
-        echo "Creating unix user ${SCODOC_USER}"
-        adduser --no-create-home --shell /bin/bash --gecos "ScoDoc service" ${SCODOC_USER} || die "failed to create user"
-    fi
-}
-
-migrate_file_ownership() {
-    echo "Changing owner of $SCODOC_DIR to ${SCODOC_USER}"
-    chown -R "${SCODOC_USER}:${SCODOC_GROUP}" "$SCODOC_DIR"
-}
 
 # --- 2. Propriétaire des bases de données
 # Bases appartenant à www-data:
-migrate_databse_ownsership() {
+migrate_database_ownership() {
     SCO7_BASES=$(su -c "psql -l -t | grep www-data" "$POSTGRES_SUPERUSER" | awk -F '|' '{print $1}')
     for base in $SCO7_BASES
     do
@@ -74,22 +59,25 @@ migrate_local_files() {
 
 # ------ MAIN
 
-migrate_unix_user
+check_create_scodoc_user
 
+echo
 echo -n "Changer si nécessaire le propriétaire des fichiers de $SCODOC_DIR ? (y/n) [y] "
 read -r ans
 if [ "$(norm_ans "$ans")" != 'N' ]
 then
-    migrate_file_ownership
+    change_scodoc_file_ownership
 fi
 
+echo
 echo -n "Changer si nécessaire le propriétaire des bases de données SQL ? (y/n) [y] "
 read -r ans
 if [ "$(norm_ans "$ans")" != 'N' ]
 then
-    migrate_databse_ownsership
+    migrate_database_ownership
 fi
 
+echo
 echo "Les fichiers locaux de ScoDoc (configuration, photos, procès-verbaux...)"
 echo "sont maintenant stockées dans $SCODOC_VAR_DIR"
 echo -n "Copier les fichiers locaux de ScoDoc7 ? (y/n) [y] "
diff --git a/tools/utils.sh b/tools/utils.sh
index b192db7a6..a13e51953 100644
--- a/tools/utils.sh
+++ b/tools/utils.sh
@@ -59,6 +59,22 @@ init_postgres_user() { # run as root
   fi
 }
 
+# --- Ensure Unix user "scodoc" exists
+check_create_scodoc_user() {
+    if [ $(id -u "${SCODOC_USER}" &> /dev/null) ]
+    then
+        echo "Creating unix user ${SCODOC_USER}"
+        adduser --no-create-home --shell /bin/bash --gecos "ScoDoc service" ${SCODOC_USER} || die "failed to create user"
+    else
+        echo "Unix user ${SCODOC_USER} exists"
+    fi
+}
+
+# --- Give all ScoDoc files to user "scodoc":
+change_scodoc_file_ownership() {
+    echo "Changing owner of $SCODOC_DIR to ${SCODOC_USER}"
+    chown -R "${SCODOC_USER}:${SCODOC_GROUP}" "$SCODOC_DIR"
+}
 
 # XXX inutilise 
 gen_passwd() {