diff --git a/README.md b/README.md
index daf37fb..2bab0ed 100755
--- a/README.md
+++ b/README.md
@@ -177,6 +177,8 @@ Use the scripts to get the framadate funky frontend and update it
 ```bash 
 bash front_update.sh
 ```
+If you wish to develop things for the frontend, do not rebuild it each time, use a live server in the funky-framadate-front folder.
+
 ## cronjob to delete expired polls
 you can open your crontabl in command line with :
 ```
diff --git a/front_update.sh b/front_update.sh
index 8812cfd..7135cbf 100755
--- a/front_update.sh
+++ b/front_update.sh
@@ -24,6 +24,32 @@ cecho() {
   echo -e "$text"
 }
 
+# vérifs prérequis
+
+if [ ! type nvm &> /dev/null ]; then
+  cecho red " ❌ la commande nvm est introuvable"
+  exit 1
+fi
+cecho g " ✅ nvm"
+if [ ! type node &> /dev/null ]; then
+  cecho red " ❌ la commande node est introuvable"
+  exit 1
+fi
+cecho g " ✅ node"
+if [ ! type git &> /dev/null ]; then
+  cecho red " ❌ la commande git est introuvable"
+  exit 1
+fi
+cecho g " ✅ git"
+if [ ! type yarn &> /dev/null ]; then
+  cecho red " ❌ la commande yarn est introuvable"
+  exit 1
+fi
+cecho g " ✅ yarn"
+
+# use node version 16
+nvm use 16
+
 cd funky-framadate-front
 git reset --hard && git checkout $BRANCH && git pull
 cd ..
@@ -72,7 +98,7 @@ COUNT_FILES=$(ls -larth ../public |wc -l)
 cd ..
 cecho b " $COUNT_FILES fichiers de build copiés dans /public"
 cecho g "##################################################################"
-cecho b " renaming unieque name of JS chunks to common names for templates "
+cecho b " renaming unique name of JS chunks to common names for templates "
 cd public
 
 mv runtime* runtime.js