diff --git a/home-manager/default.nix b/home-manager/default.nix
index a297766..cbfafa9 100644
--- a/home-manager/default.nix
+++ b/home-manager/default.nix
@@ -22,10 +22,19 @@ in {
     stateVersion = "25.11";
     username = username;
   };
-  programs.wezterm = {
+  programs.ghostty = {
     enable = true;
-    extraConfig = builtins.readFile ./wezterm/wezterm.lua;
-    package = pkgs.brewCasks.wezterm;
+    package = pkgs.brewCasks.ghostty;
+    settings = {
+      background-opacity = 0.8;
+      command = "${pkgs.unstable.fish}/bin/fish";
+      font-family = [
+        "Roboto Mono"
+        "Noto Sans JP"
+      ];
+      macos-titlebar-style = "tabs";
+      theme = "dark:One Double Dark, light:One Double Light";
+    };
   };
   xdg.configFile = {
     "fish/config.fish".source = ./fish/config.fish;
diff --git a/home-manager/wezterm/wezterm.lua b/home-manager/wezterm/wezterm.lua
deleted file mode 100644
index 6869bad..0000000
--- a/home-manager/wezterm/wezterm.lua
+++ /dev/null
@@ -1,98 +0,0 @@
-local wezterm = require "wezterm"
-
-local config = {
-  default_prog = { string.format("%s/.nix-profile/bin/fish", os.getenv "HOME"), "--login" },
-  font = wezterm.font_with_fallback {
-    "Roboto Mono",
-    "Noto Sans JP",
-  },
-  font_size = 12.0,
-  send_composed_key_when_right_alt_is_pressed = true,
-  window_background_opacity = 0.8,
-  window_decorations = "INTEGRATED_BUTTONS | RESIZE",
-  window_frame = {
-    font_size = 12.0,
-  },
-}
-
-if string.find(wezterm.target_triple, "windows") then
-  config.default_prog = { "pwsh", "-NoLogo" }
-end
-
----@param path string
----@return string
-local function trim_path(path)
-  local s = string.gsub(path, "(.*[/\\])(.*)", "%2")
-
-  return s
-end
-
----@type { [string]: { color?: string, icon: string } }
-local process_icons = {
-  docker = {
-    color = "#1d63ed",
-    icon = wezterm.nerdfonts.md_docker,
-  },
-  fish = {
-    icon = wezterm.nerdfonts.dev_terminal,
-  },
-  go = {
-    color = "#79d4fd",
-    icon = wezterm.nerdfonts.md_language_go,
-  },
-  nvim = {
-    color = "#00b952",
-    icon = wezterm.nerdfonts.custom_neovim,
-  },
-}
-
-wezterm.on("format-tab-title", function(tab, _, _, _, _, _)
-  local pane = tab.active_pane
-  local process_name = trim_path(pane.foreground_process_name)
-
-  if not pane.current_working_dir then
-    return process_name
-  end
-  ---@type string
-  local cwd = pane.current_working_dir.file_path
-  local text_color = tab.is_active and "#c0c0c0" or "#808080"
-  local icon_spec = process_icons[process_name]
-
-  return {
-    {
-      Foreground = {
-        Color = text_color, -- For close-tab button
-      },
-    },
-    {
-      Text = utf8.char(0x200B), -- Zero-width space
-    },
-    {
-      Foreground = {
-        Color = tab.is_active and icon_spec and icon_spec.color or text_color,
-      },
-    },
-    { Text = icon_spec and icon_spec.icon or process_name .. " on" },
-    {
-      Foreground = {
-        Color = text_color,
-      },
-    },
-    { Text = " " .. trim_path(cwd) },
-  }
-end)
-
-wezterm.on("gui-startup", function()
-  local _, _, window = wezterm.mux.spawn_window {}
-  window:gui_window():maximize()
-end)
-
-if string.find(wezterm.target_triple, "apple") then
-  wezterm.on("window-focus-changed", function(window, _)
-    if window:is_focused() then
-      os.execute "osascript -e 'tell application \"System Events\" to key code 102'"
-    end
-  end)
-end
-
-return config