diff --git a/configure.sh b/configure.sh
index dd56307..74264b8 100755
--- a/configure.sh
+++ b/configure.sh
@@ -32,8 +32,10 @@ APT::Install-Suggests "0";" | tee /etc/apt/apt.conf.d/01norecommend >/dev/null
 
     cp "$AWD/assets/TINK-CA.crt" /usr/local/share/ca-certificates
     update-ca-certificates
-    usermod -s /usr/bin/zsh $(whoami)
+    sed -i "s|/bin/bash|/usr/bin/zsh|g" /etc/passwd
+}
 
+personalize() {
     mkdir -p $HOME/.config/fd
     cp "$AWD/assets/ignore" $HOME/.config/fd/
     cp "$AWD/assets/.zshrc" $HOME/
@@ -55,14 +57,19 @@ usage(){
     echo "Usage: $0 [OPTIONS]";
     echo "OPTIONS:";
     echo "    -s                    skip install";
+    echo "    -p                    personalize only";
 }
 
 DO_INSTALL=true;
-while getopts ":s" OPT; do
+DO_SYS_CONFIG=true;
+while getopts ":sp" OPT; do
     case $OPT in
     s)
             DO_INSTALL=false;
             ;;
+    p)
+            DO_SYS_CONFIG=false;
+            ;;
     ?)
             echo "Invalid Option: -$OPTARG";
             usage;
@@ -70,4 +77,7 @@ while getopts ":s" OPT; do
     esac;
 done;
 
-configure $DO_INSTALL
\ No newline at end of file
+if $DO_SYS_CONFIG; then
+    configure
+fi
+personalize $DO_INSTALL
\ No newline at end of file