diff --git a/zsh/config.zsh b/zsh/config.zsh
new file mode 100644
index 0000000..8ed9087
--- /dev/null
+++ b/zsh/config.zsh
@@ -0,0 +1,5 @@
+copy_ssh_keys() {
+  cat ~/.ssh/authorized_keys | ssh $* '(test -f ~/.ssh/id_rsa || ssh-keygen -t rsa -b 4096 -f ~/.ssh/id_rsa -N "") </dev/null && cat > ~/.ssh/authorized_keys'
+  echo -n "Testing..."
+  ssh -o PasswordAuthentication=no $* 'echo Success'
+}