diff --git a/README.md b/README.md
index d3e976e..4f5b629 100644
--- a/README.md
+++ b/README.md
@@ -33,8 +33,12 @@ Jitsi Meet is a libre software (Apache) WebRTC JavaScript app that uses Jitsi Vi
 1. **Jitsi** requires a dedicated **root domain**, eg. jitsi.domain.tld
 2. **Jitsi** requires the ports TCP/4443 and UDP/10000 to be forwarded to your YunoHost (The same way you forwarded 80 (HTTP), 443 (HTTPS), etc... https://yunohost.org/#/isp_box_config)
 3. **Jitsi** will stop and disable Metronome XMPP.
-4. LDAP authentication is activated, only authenticated users to create new conference rooms. Whenever a new room is about to be created, Jitsi Meet will prompt for a user name and password. After the room is created, others will be able to join from anonymous domain.
-5. **Jitsi** is configured for 50 users maximum, this number can be increase going to the Yunohost config panel
+4. LDAP authentication is activated, only authenticated users can create new conference rooms. Whenever a new room is about to be created, Jitsi Meet will prompt for a user name and password. After the room is created, others will be able to join from anonymous domain.
+5. **Jitsi** is configured for to user 200MiB memory (next to 50 simultaneus users), this number can be increase going to the Yunohost config panel
+5. **Jitsi** is compatible with armhf architecture, it was tested on odroid xu4 and hc1. 
+
+## known bug
+- if a second user join before the first user declared himself as moderator video and sound should never appear, reload page should correct the problem
 
 ## Documentation and resources
 
@@ -55,4 +59,4 @@ or
 sudo yunohost app upgrade jitsi -u https://github.com/YunoHost-Apps/jitsi_ynh/tree/testing --debug
 ```
 
-**More info regarding app packaging:** https://yunohost.org/packaging_apps
\ No newline at end of file
+**More info regarding app packaging:** https://yunohost.org/packaging_apps
diff --git a/README_fr.md b/README_fr.md
index 58bd579..2a46a90 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -30,7 +30,11 @@ Jitsi Meet est un logiciel libre (Apache) dont Jitsi Videobridge, avec WebRTC Ja
 2. **Jitsi** demande que les ports TCP/4443 et UDP/10000 soient routés vers votre YunoHost (De la même manière que le sont les ports 80 (HTTP), 443 (HTTPS), etc... https://yunohost.org/#/isp_box_config)
 3. **Jitsi** va arréter et désactiver le service XMPP Metronome.
 4. L'authentification LDAP est activée, seuls les utilisateurs authentifiés peuvent créer de nouvelles salles de conférence. Chaque fois qu'une nouvelle salle est sur le point d'être créée, Jitsi Meet vous demandera un nom d'utilisateur et un mot de passe. Une fois la salle créée, d'autres personnes pourront la rejoindre à partir d'un domaine anonyme. 
-5. **Jitsi** est configuré pour 50 utilisateurs maximum, ce nombre peut être augmenté en allant dans le panneau de configuration Yunohost
+5. **Jitsi** est configuré pour utiliser 200MiB (equivalent a 50 utilisateurs maximum), ce nombre peut être augmenté en allant dans le panneau de configuration Yunohost
+6. **Jitsi** est compatible avec l'architecture armhf (testé sur odroid XU4 et HC1) 
+
+## Bugs connus
+- si un second utilisateur rejoins le salon avant que le premié ne se soit déclaré comme modérateur, il risque de ne pas y avoir de partage de video et d'audio. Un rechargement de la page devrait suffir apres que le modérateur se soit identifé.
 
 ## Documentations et ressources
 
@@ -51,4 +55,4 @@ ou
 sudo yunohost app upgrade jitsi -u https://github.com/YunoHost-Apps/jitsi_ynh/tree/testing --debug
 ```
 
-**Plus d'infos sur le packaging d'applications :** https://yunohost.org/packaging_apps
\ No newline at end of file
+**Plus d'infos sur le packaging d'applications :** https://yunohost.org/packaging_apps
diff --git a/conf/jitsi-sctp.src b/conf/jitsi-sctp.src
new file mode 100644
index 0000000..034ec40
--- /dev/null
+++ b/conf/jitsi-sctp.src
@@ -0,0 +1,6 @@
+SOURCE_URL=https://github.com/jitsi/jitsi-sctp/archive/04269a7342fbd3bd66dd40ed892cfc80559d62d4.tar.gz
+SOURCE_SUM=2aa4f596e96186d43f4beb3e9db9907d23b993d974e15dd051031f4d00423bf2
+SOURCE_SUM_PRG=sha256sum
+SOURCE_FORMAT=tar.gz
+SOURCE_IN_SUBDIR=true
+SOURCE_EXTRACT=true
diff --git a/conf/usrsctp.src b/conf/usrsctp.src
new file mode 100644
index 0000000..aeb80da
--- /dev/null
+++ b/conf/usrsctp.src
@@ -0,0 +1,6 @@
+SOURCE_URL=https://github.com/sctplab/usrsctp/archive/c138bc04bbb20b34fc10fd50e34c1723c40896c4.tar.gz
+SOURCE_SUM=ff4808da7c4bbd886feeb03a74eee1cb235a7d4c9a20c16a37581fe10d55dd4b
+SOURCE_SUM_PRG=sha256sum
+SOURCE_FORMAT=tar.gz
+SOURCE_IN_SUBDIR=true
+SOURCE_EXTRACT=true
diff --git a/config_panel.toml b/config_panel.toml
index 53f6da1..1089624 100644
--- a/config_panel.toml
+++ b/config_panel.toml
@@ -11,4 +11,4 @@ services = ["__APP__-jicofo","__APP__-videobridge"]
         bind = "null"
         ask.en = "Max memory to use for VM"
         type = "number"
-        help = "One user consume about 1,5 Mib memory, for example if plan to have max 50 simultaneous users this parameter should be set to 75 mb"
+        help = "One user consume about 1,5 Mib memory ,with no user jitsi consume 120 MiB. For example if plan to have max 50 simultaneous users this parameter should be set to 200 mb"
diff --git a/manifest.json b/manifest.json
index 876adda..5103063 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Video conferencing web application",
         "fr": "Application web de conférence vidéo"
     },
-    "version": "1.0.5913~ynh2",
+    "version": "1.0.5913~ynh3",
     "url": "https://jitsi.org/Projects/JitMeet",
     "upstream": {
         "license": "Apache-2.0",
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 45d1c9f..992eb27 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -7,6 +7,13 @@
 # dependencies used by the app
 pkg_dependencies="openjdk-8-jre-headless|openjdk-11-jre-headless debconf|debconf-2.0 procps uuid-runtime lua-ldap"
 
+if [ $YNH_ARCH == "armhf" ] 
+then
+	pkg_dependencies_arm="automake autoconf build-essential libtool git maven m4"
+	pkg_dependencies="$pkg_dependencies $pkg_dependencies_arm"
+
+	pkg_extra_depedencies_arm="openjdk-8-jre openjdk-8-jre-headless openjdk-8-jdk openjdk-8-jdk-headless"
+fi
 #=================================================
 # PERSONAL HELPERS
 #=================================================
@@ -16,6 +23,49 @@ ynh_version_gt ()
     dpkg --compare-versions "$1" gt "$2"
 }
 
+ynh_jniwrapper_armhf ()
+{
+    
+    # set openjdk-8 as default 
+    # update-alternatives --set java /usr/lib/jvm/java-8-openjdk-armhf/jre/bin/java
+    tempdir="$(mktemp -d)"
+
+    # prepare jniwrapper compilation
+    export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-armhf
+
+    declare -A packages_arm
+    packages_arm[jitsi-sctp]="jitsi-sctp"
+    packages_arm[usrsctp]="jitsi-sctp/usrsctp/usrsctp"
+
+    for package_arm in "${!packages_arm[@]}"
+    do
+      ynh_setup_source --dest_dir="$tempdir/${packages_arm[$package_arm]}" --source_id=$package_arm
+    done
+
+    # needed to make compile works
+    if [ ! -d "$tempdir/jitsi-sctp/jniwrapper/native/src/main/resources/lib/linux-arm/" ]
+    then
+      mkdir -p $tempdir/jitsi-sctp/jniwrapper/native/src/main/resources/lib/linux-arm/
+    fi
+
+    pushd "$tempdir/jitsi-sctp"
+      mvn package -DbuildSctp -DbuildNativeWrapper -DdeployNewJnilib -DskipTests
+      mvn package	
+    popd
+
+    # rm official jniwrapper to copy 
+    original_jniwrapper=$(ls $final_path/jitsi-videobridge/lib/jniwrapper-native-*.jar)
+    ynh_secure_remove --file="$original_jniwrapper"
+
+    mv "$tempdir/jitsi-sctp/jniwrapper/native/target/jniwrapper-native-1.0-SNAPSHOT.jar" "$final_path/jitsi-videobridge/lib/"
+
+    chmod 640 "$final_path/jitsi-videobridge/lib/jniwrapper-native-1.0-SNAPSHOT.jar"
+    chown -R $app:$app "$final_path/jitsi-videobridge/lib/jniwrapper-native-1.0-SNAPSHOT.jar"
+
+    ynh_secure_remove --file="$tempdir"
+}
+
+
 #=================================================
 # EXPERIMENTAL HELPERS
 #=================================================
diff --git a/scripts/install b/scripts/install
index 102e153..f301ad2 100644
--- a/scripts/install
+++ b/scripts/install
@@ -42,7 +42,7 @@ focus_user="focus"
 
 videobridge_user="jvb"
 
-max_memory=75
+max_memory=200 #125 mib with no user +1,5*50 users=75 mib
 
 #=================================================
 # CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
@@ -99,6 +99,12 @@ ynh_app_setting_set --app=$app --key=port_component --value=$port_component
 ynh_script_progression --message="Installing dependencies..."
 
 ynh_install_app_dependencies $pkg_dependencies
+if [ $YNH_ARCH == "armhf" ] 
+then
+	ynh_script_progression --message="Installing specific arm dependencies..."
+	ynh_install_extra_app_dependencies --repo="deb http://security.debian.org/debian-security stretch/updates main" --package="$pkg_extra_depedencies_arm"
+fi
+
 
 if ! yunohost app list | grep -q "prosody"
 then
@@ -214,6 +220,17 @@ ynh_add_config --template="../conf/jitsi-videobridge-sip-communicator.properties
 
 ynh_add_config --template="../conf/jitsi-videobridge.config" --destination="/etc/$app/videobridge/config"
 
+#=================================================
+# REPLACE JNIWRAPPER FOR ARMHF ARCHITECTURE IN JITSI-VIDEOBRIDGE
+#=================================================
+
+if [ $YNH_ARCH == "armhf" ] 
+then
+	ynh_script_progression --message="Configuring jniwrapper for armhf ..."
+	ynh_jniwrapper_armhf
+    
+fi
+
 #=================================================
 # CONFIGURE JITSI-JICOFO
 #=================================================
@@ -265,8 +282,6 @@ ynh_script_progression --message="Securing files and directories..."
 # Set permissions to app files
 chown -R $app: /etc/$app
 
-#=================================================
-# GENERIC FINALIZATION
 #=================================================
 # SETUP LOGROTATE
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index b716c03..0cf8379 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -82,7 +82,7 @@ fi
 
 # If max_memory doesn't exist, create it and set to default 75 mb value
 if [ -z "$max_memory" ]; then
-	max_memory=75
+	max_memory=200
 	ynh_app_setting_set --app=$app --key=max_memory --value=$max_memory
 fi
 
@@ -145,6 +145,12 @@ ynh_script_progression --message="Upgrading dependencies..."
 
 ynh_install_app_dependencies $pkg_dependencies
 
+if [ $YNH_ARCH == "armhf" ] 
+then
+	ynh_script_progression --message="Installing specific arm dependencies..."
+	ynh_install_extra_app_dependencies --repo="deb http://security.debian.org/debian-security stretch/updates main" --package="$pkg_extra_depedencies_arm"
+fi
+
 if ! yunohost app list | grep -q "prosody"
 then
 	yunohost tools update
@@ -200,6 +206,18 @@ then
 	ynh_add_config --template="../conf/jitsi-videobridge.config" --destination="/etc/$app/videobridge/config"
 fi
 
+
+#=================================================
+# REPLACE JNIWRAPPER FOR ARMHF ARCHITECTURE IN JITSI-VIDEOBRIDGE
+#=================================================
+
+if [ $YNH_ARCH == "armhf" ] 
+then
+	ynh_script_progression --message="Configuring jniwrapper for armhf ..."
+	ynh_jniwrapper_armhf
+    
+fi
+
 #=================================================
 # CONFIGURE JITSI-JICOFO
 #=================================================