diff --git a/bin/pct-create b/bin/pct-create
index 43847e9..51c22a7 100755
--- a/bin/pct-create
+++ b/bin/pct-create
@@ -7,6 +7,7 @@ CONTAINER_NAME=$1
 TEMPLATE_DIR=/var/lib/vz/template/cache
 TAG_NAME=debian13
 SSH_PUBKEYS="$BASEDIR/../config/admin.pubkeys"
+CONFIG_FILE="$BASEDIR/../config/default.conf"
 
 # FUNCTIONS
 
@@ -18,15 +19,6 @@ function debian13_template {
 	ls -1 $TEMPLATE_DIR | grep ^debian-13
 }
 
-function show_defaults {
-	echo -n "STORAGE_DISK=$STORAGE_DISK,"
-	echo -n "STORAGE_SIZE=$STORAGE_SIZE,"
-	echo -n "MEMORY=$MEMORY,"
-	echo -n "SWAP=$SWAP,"
-	echo -n "CPU=$CPU,"
-	echo
-}
-
 function convert_human_size_to_megabyte {
 	value=$1
 	echo "$(numfmt --from=iec-i "$value"i --to-unit=Mi)" | cut -dM -f1
@@ -37,6 +29,14 @@ function convert_human_size_to_gigabyte {
 	echo "$(numfmt --from=iec-i "$value"i --to-unit=Gi)" | cut -dG -f1
 }
 
+function optional_public_keys {
+	if [[ -f $SSH_PUBKEYS ]]; then
+		echo "--ssh-public-keys $SSH_PUBKEYS"
+	else
+		echo
+	fi
+}
+
 function create_container {
 	local new_id=$($BASEDIR/pct-nextid)
 	local template_file="$TEMPLATE_DIR/$(debian13_template)"
@@ -56,7 +56,7 @@ function create_container {
 		--net0 name=eth0,bridge=vmbr0,ip=dhcp,firewall=1 \
 		--start \
 		--onboot true \
-		--ssh-public-keys $SSH_PUBKEYS \
+		$(optional_public_keys) \
 		--unprivileged true \
 		--features nesting=1 \
 		
@@ -65,7 +65,7 @@ function create_container {
 }
 
 function existing_container {
-	local vmid=$($BASEDIR/pct-lookup "$CONTAINER_NAME")
+	local vmid=$($BASEDIR/pct-lookup "$CONTAINER_NAME" 2>/dev/null)
 	if [[ -z $vmid ]]; then 
 		false
 	else
@@ -78,9 +78,8 @@ function existing_container {
 
 set -Eue
 [[ "$#" -lt 1 ]] && usage && exit 1
-source "$BASEDIR/../config/default.config"
+source "$CONFIG_FILE"
 
-# show_defaults
 existing_container && false || create_container
 
 
diff --git a/install.sh b/install.sh
index 4f610c2..680619d 100755
--- a/install.sh
+++ b/install.sh
@@ -2,6 +2,7 @@
 
 # CONSTANTS
 
+CONFIG_FILE=/opt/miaou-proxmox/config/default.conf
 
 # FUNCTIONS
 
@@ -40,6 +41,63 @@ function install_miaou_proxmox {
 	[[ $status == 'appended' ]] && echo 'successfully installed! please run `source $HOME/.bashrc`'
 }
 
+function compute_cpu_cores {
+	cores=$(nproc)
+	if [[ $cores -ge 16 ]]; then 
+		cores=$(( cores / 4 ))
+	else	
+		if [[ $cores -ge 4 ]]; then
+			cores=$(( cores / 2 ))
+		else
+			cores=1
+		fi
+	fi
+	echo $cores
+}
+
+function choose_default {
+	storage_size='20G'
+	memory='2G'
+	swap='2G'
+	cpu=$(compute_cpu_cores)
+
+	mapfile -t storages <<< $(pvesm status | grep zfspool | cut -d' ' -f1)
+	PS3="Choose default storage number: "
+	echo "TYPE=ZFSPOOL STORAGE LIST:"
+	echo "--------------------------"
+	select storage_disk in "${storages[@]}"; do
+		[[ -n $storage_disk ]] && break
+	done
+
+	cat > $CONFIG_FILE <<EOF 
+STORAGE_DISK=\${STORAGE_DISK:-$storage_disk}
+STORAGE_SIZE=\${STORAGE_SIZE:-$storage_size}
+MEMORY=\${MEMORY:-$memory}
+SWAP=\${SWAP:-$swap}
+CPU=\${CPU:-$cpu}
+EOF
+}
+
+function initialize {
+	if [[ ! -d /opt/miaou-proxmox/config ]]; then
+		echo 'initializing default values...'
+		mkdir /opt-miaou-proxmox/config
+		choose_default
+	else
+		echo '------------------------'
+		pct-default
+	fi
+
+	echo '------------------------'
+	echo 'successfully configured!'
+	echo '------------------------'
+	echo 'you can display or edit default values with:'
+	echo '  `pct-default`'
+	echo '  `pct-default --edit`'
+	echo '------------------------'
+	echo 'try out any of the `pct-*` commands (--help might be useful)'
+}
+
 # MAIN
 
 set Eue
@@ -47,3 +105,4 @@ assert_root
 assert_proxmox
 install_miaou_bash
 install_miaou_proxmox
+initialize