zsh: add notify wrapper

zsh/.zshrc

@@ -4,6 +4,7 @@ export GOPATH="~/go";
 
 export PATH=$GOPATH/bin:$PATH
 
+export PATH=~/.config/i3/scripts:$PATH
 export PATH=/opt/dart-sdk/bin:$PATH
 export PATH=~/dev/flutter/bin:$PATH
 export PATH=~/.emacs.d/bin:$PATH
@@ -124,4 +125,13 @@ follow_du () {
     cd $(cat /tmp/follow_du_workdir)
 }
 
+notify(){
+    start=$(date +%s)
+    "$@"
+    exit_code="$?"
+    message="Command \"$(echo $@)\" finished with exit code $exit_code after $(($(date +%s) - start)) seconds"
+    gotify push -q $message
+    notify-send $message
+}
+
 eval "$(starship init zsh)"