diff --git a/.zshrc b/.zshrc
index cbcb568..ebbba2c 100644
--- a/.zshrc
+++ b/.zshrc
@@ -46,6 +46,7 @@ alias rg="rg --no-ignore"
 alias home="cd $HOME"
 alias ff=firefox
 alias fd=fdfind
+alias shutdown="confirm shutdown"
 
 ### Functions
 function largefiles () { exec 2>/dev/null; du -ah "$@" | grep -P "^\d+(G|T|P|E)\s" }
@@ -65,7 +66,7 @@ function condac() {
 # calculate on shell with `c 1+1`
 function c() { printf "%s\n" "$@" | bc -l; }
 # Call Python and execute multiple statements from args
-function py() { 
+function py() {
     python <<< "
 from math import *
 
@@ -81,12 +82,12 @@ def evaluate_and_print(code):
 if __name__ == \"__main__\":
     expr = '$*'
     evaluate_and_print(expr)
-" 
+"
 }
 function countlines() {
   find . -type f -name "$1" -exec wc -l {} \; | awk '{print $0} {total += $1} END {print "Total lines:", total}'
 }
-function git-verify-commit () { 
+function git-verify-commit () {
 git verify-commit $1
 ret=$?
 if [ $ret -ne 0 ]; then
@@ -96,6 +97,25 @@ else
 fi
 return $ret
 }
+function confirm() {
+	echo "To be executed: $@"
+	read -p "Confirm (Y/N): " -n 1 -r
+	case "$REPLY" in
+	y|Y ) echo "es"; eval $@;;
+	n|N ) echo "o";;
+	* ) echo -e "\ninvalid";;
+	esac
+}
+function confirm-important() {
+	echo "Write 'yes do as i say' to confirm that you REALLY want to do this: $@"
+	read
+	if [[ "${REPLY,,}" = "yes do as i say" ]]
+	then
+		eval $@
+	else
+		echo "aborting"
+	fi
+}
 
 ### ---- zsh options -------------------------------------
 setopt autocd
@@ -266,9 +286,15 @@ zstyle ':completion:*' menu select
 fpath+=~/.zfunc
 
 export NVM_DIR="$HOME/.config/nvm"
-# diese Scheiße läd so ewig, wer auch immer dachte dass das so eine gute idee 
+# diese Scheiße läd so ewig, wer auch immer dachte dass das so eine gute idee
 # ist gehört gefeuert. Das muss jeden Tag viele leute minuten kosten.
 # [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
 # [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
 
+# on demand nvm
+function load_nvm() {
+[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
+[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
+}
+
 # zprof