diff --git a/bin/install.sh b/bin/install.sh
new file mode 100644
index 0000000..cabc0ff
--- /dev/null
+++ b/bin/install.sh
@@ -0,0 +1 @@
+ln -s (pwd)/dotfiles/fish/config.fish ~/.config/fish/config.fish
diff --git a/dotfiles/fish/config.fish b/dotfiles/fish/config.fish
index 428fa5c..09b6f19 100644
--- a/dotfiles/fish/config.fish
+++ b/dotfiles/fish/config.fish
@@ -1,9 +1,24 @@
+# load .bashrc
+# bass source ~/.bashrc
+
 if status is-interactive
-    # Commands to run in interactive sessions can go here
     # starship
     starship init fish | source
+    
+    function set_win_title
+      echo -ne "\033]0; (basename "$PWD") \007"
+    end
+    set starship_precmd_uesr_func "set_win_title"
+
+    # keychain
+    set -x SHELL fish
+    keychain --eval --quiet -Q id_rsa, id_ed25519 | source
+    set -x SHELL bash
+
+    # opam
+    # source ~/.opam/opam-init/init.fish > /dev/null 2> /dev/null; or true
 end
 
 
-# opam configuration
-source /home/qwjyh/.opam/opam-init/init.fish > /dev/null 2> /dev/null; or true
+# key bindings
+bind \b backward-kill-word
\ No newline at end of file