diff --git a/README.md b/README.md
index becc2f1..e90336e 100644
--- a/README.md
+++ b/README.md
@@ -7,11 +7,8 @@ source $HOME/.zshrc
 ```
 Alternatively, use the shortened url:
 ```zsh
-# Try the following command
-# until the first line of the content becomes `#!/bin/sh`
-curl -L pr8.work/0/sup39-zsh
-# and then execute the setup script
-curl -L pr8.work/0/sup39-zsh | sh -
+# Download setup file and execute it
+curl -L 301.sup39.ml/zsh-setup | sh -
 
 # Finally, source the zshrc file
 source $HOME/.zshrc
@@ -24,13 +21,12 @@ source $HOME/.zshrc
 ```
 
 ## Content
+
 ### zshrc
 - `~/.zshrc`
 
-:warning: *OVERWRITE* if exists
-
 ### [vimrc](https://github.com/sup39/vimrc)
 - `~/.vim/sup39`
 - `~/.vimrc`
 
-:bulb: No overwriting
+:bulb: No overwriting if exists
diff --git a/setup.sh b/setup.sh
index 0c5f3c5..997e72f 100644
--- a/setup.sh
+++ b/setup.sh
@@ -1,6 +1,9 @@
 #!/bin/sh
 # .zshrc
-curl https://raw.githubusercontent.com/sup39/zsh-setup/master/zshrc -o $HOME/.zshrc
+[ -f $HOME/.zshrc ] || curl https://raw.githubusercontent.com/sup39/zsh-setup/master/zshrc -o $HOME/.zshrc
+# .zshenv
+[ -f $HOME/.zshenv ] || curl https://raw.githubusercontent.com/sup39/zsh-setup/master/zprofile -o $HOME/.zshenv
+
 # .vim/sup39
 [ -d $HOME/.vim/sup39 ] || git clone https://github.com/sup39/vimrc $HOME/.vim/sup39
 # .vimrc
diff --git a/zshenv b/zshenv
new file mode 100644
index 0000000..d46bf43
--- /dev/null
+++ b/zshenv
@@ -0,0 +1 @@
+export EDITOR=vim