diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index dadc0f2..2d92491 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -46,6 +46,18 @@ repos:
       - id: trailing-whitespace
         args: [--markdown-linebreak-ext=md]
 
+  # Skips silently if `ghostty` is not on PATH (e.g. on Linux dev boxes).
+  # Note: validates the .tmpl as-is. The file currently has no Go-template
+  # syntax, so chezmoi passes it through unchanged. If templating is added
+  # later, render via `chezmoi execute-template` before validating.
+  - repo: local
+    hooks:
+      - id: ghostty-validate-config
+        name: validate ghostty config
+        entry: bash -c 'command -v ghostty >/dev/null || exit 0; for f in "$@"; do ghostty +validate-config --config-file="$f" || exit 1; done' --
+        language: system
+        files: '^dot_config/ghostty/.*\.tmpl$'
+
   - repo: meta
     hooks:
       - id: check-hooks-apply
diff --git a/dot_config/ghostty/config.tmpl b/dot_config/ghostty/config.tmpl
new file mode 100644
index 0000000..44cedd4
--- /dev/null
+++ b/dot_config/ghostty/config.tmpl
@@ -0,0 +1,44 @@
+# Window
+background-opacity = 0.7
+background-blur-radius = 20
+macos-titlebar-style = tabs
+window-padding-x = 6
+window-padding-y = 6
+# Manually resize once (green button, or Rectangle/Spectacle); the layout
+# is preserved across launches by window-save-state.
+window-save-state = always
+
+# Behavior
+copy-on-select = clipboard
+mouse-hide-while-typing = true
+
+# Send Esc-prefix on left option so emacs-style bindings reach the shell
+# (e.g. fzf-cd-widget on Alt+C). Right option still composes accents.
+macos-option-as-alt = left
+
+# Keybindings
+# Most defaults already match tmux muscle memory:
+#   Cmd+T = new tab, Cmd+W = close, Cmd+D = split right,
+#   Cmd+Shift+D = split down, Cmd+1-9 = goto tab
+
+# Navigate splits with Cmd+Arrow (default is Cmd+Alt+Arrow)
+keybind = super+left=goto_split:left
+keybind = super+down=goto_split:bottom
+keybind = super+up=goto_split:top
+keybind = super+right=goto_split:right
+
+# Resize splits with Cmd+Shift+Arrow (default is Cmd+Ctrl+Arrow)
+keybind = super+shift+left=resize_split:left,10
+keybind = super+shift+down=resize_split:down,10
+keybind = super+shift+up=resize_split:up,10
+keybind = super+shift+right=resize_split:right,10
+
+# Zoom split with Cmd+Z (default is Cmd+Shift+Enter)
+keybind = super+z=toggle_split_zoom
+
+# Rename tab with Cmd+, (like tmux rename-window)
+keybind = super+comma=set_tab_title:
+
+# Cycle tabs with Ctrl+Tab / Ctrl+Shift+Tab
+keybind = ctrl+tab=next_tab
+keybind = ctrl+shift+tab=previous_tab