diff --git a/README.md b/README.md
index 1f57f29..5ce9f55 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,21 @@
 # dotfiles
+
 mar does dotfiles
 
-## Sources
+# post install
+
+Set iTerm2 to use the preferences file, if applicable.
+
+## tmux
+
+```fish
+tmux attach || tmux new -s main
+sudo ln -s ~/.tmux/plugins/tmux-open-nvim/scripts/ton /usr/local/bin/ton
+```
+`<ctrl-a I>` to install plugins.
+
+## sources
+
 [oh-my-zsh git](https://kapeli.com/cheat_sheets/Oh-My-Zsh_Git.docset/Contents/Resources/Documents/index)
 [git-prevision](https://gist.github.com/TheCodeArtist/a90978ebca0ff6743036)
 [iTerm2 keymaps for tmux](https://web.archive.org/web/20230921160724/https://tangledhelix.com/blog/2012/04/28/iterm2-keymaps-for-tmux/)
diff --git a/git/install.fish b/git/install.fish
deleted file mode 100755
index b52c8e9..0000000
--- a/git/install.fish
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env sh
-
-. "$DOT/homebrew/brew_utils.sh"
-
-brew_install "Github CLI" "gh"
-brew_install "Gitmoji" "gitmoji"
diff --git a/homebrew/brew_utils b/homebrew/brew_utils
new file mode 100644
index 0000000..21e7cd0
--- /dev/null
+++ b/homebrew/brew_utils
@@ -0,0 +1,59 @@
+#!/user/bin/env fish
+
+source "$DOT/script/utils"
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+function brew_prefix
+  set -f path (brew --prefix 2>/dev/null)
+
+  if [ -n $path ]
+    printf '%s' "$path"
+    return 0
+  else
+    print_error "Homebrew (get prefix)"
+    return 1
+  end
+end
+
+function brew_tap
+  brew tap "$argv[1]" &>/dev/null
+end
+
+function brew_update
+  execute "brew update" "Homebrew (update)"
+end
+
+function brew_upgrade
+  execute "brew upgrade" "Homebrew (upgrade)"
+end
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+function brew_install
+  set -f formula_readable_name $argv[1]
+  set -f formula $argv[2]
+  set -f arguments $argv[3]
+  set -f tap_value $argv[4]
+
+  # Check that Homebrew is installed
+  if ! cmd_exists "brew"
+    print_error "$formula_readable_name ('Homebrew' is not installed)"
+  end
+
+  # If 'brew tap' needs to be executed, check if it executed correctly.
+  if [ -n "$tap_value"]
+    if ! brew_tap "$tap_value"
+      print_error "$formula_readable_name ('brew tap $tap_value' failed)"
+      return 1
+    end
+  end
+
+  # Install the formula.
+  if brew list "$formula" &>/dev/null
+    print_success "$formula_readable_name"
+  else
+    execute "brew install $formula $arguments" \
+      "$formula_readable_name"
+  end
+end
diff --git a/homebrew/os/pref.sh b/homebrew/os/pref.sh
new file mode 100755
index 0000000..e69de29
diff --git a/script/dot b/script/dot
index 84bcd6a..322d033 100755
--- a/script/dot
+++ b/script/dot
@@ -81,7 +81,12 @@ function link_file
       mkdir -p (string replace -r '\/[^\/]+$' '' "$dst")
     end
 
-    ln -s "$src" "$dst" &> /dev/null
+    if string match -e '.hardlink' "$src" &> /dev/null
+      ln "$src" "$dst" &> /dev/null
+    else
+      ls -s "$src" "$dst" &> /dev/null
+    end
+
     print_success "Linked $src to $dst"
   end
 end
diff --git a/tmux/.tmux.conf.copy b/tmux/.tmux.conf.hardlink
similarity index 70%
rename from tmux/.tmux.conf.copy
rename to tmux/.tmux.conf.hardlink
index 89bb2e0..b6090e7 100644
--- a/tmux/.tmux.conf.copy
+++ b/tmux/.tmux.conf.hardlink
@@ -2,6 +2,10 @@ set -g @plugin 'tmux-plugins/tpm'
 set -g @plugin 'tmux-plugins/tmux-sensible'
 set -g @plugin 'tmux-plugins/tmux-resurrect'
 set -g @plugin 'catppuccin/tmux'
+set -g @plugin 'Morantron/tmux-fingers'
+
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
 # catppuccin
 set -g @catppuccin_flavour 'mocha'
 
@@ -27,18 +31,31 @@ set -g @catppuccin_directory_text "#{pane_current_path}"
 
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
 
+# Remap prefix.
+unbind C-b
+set-option -g prefix C-a
+bind-key C-a send-prefix
+
+# Vi copy mode.
 set-window-option -g mode-keys vi
 
 bind-key -T copy-mode-vi 'v' send -X begin-selection
 bind-key -T copy-mode-vi 'y' send -X copy-selection-and-cancel
 
-bind | split-window -h -c "#{pane_current_path}"
-bind - split-window -v -c "#{pane_current_path}"
+# Better split commands.
+bind | split-window -h -c "#{pane_current_path}" # cmd-| in iTerm2
+bind - split-window -v -c "#{pane_current_path}" # cmd-- in iTerm2
+unbind '"'
+unbind %
 
-bind-key J resize-pane -D
-bind-key K resize-pane -U
-bind-key H resize-pane -L
-bind-key L resize-pane -R
+# Vi-like resizing.
+bind-key j resize-pane -D # cmd-j in iTerm2
+bind-key k resize-pane -U # cmd-k in iTerm2
+bind-key h resize-pane -L # cmd-h in iTerm2
+bind-key l resize-pane -R # cmd-l in iTerm2
+
+# Easy reload config.
+bind r source-file ~/.tmux.conf
 
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -