diff --git a/core/siren-core-modules.el b/core/siren-core-modules.el
index 72439bb..ebd4525 100644
--- a/core/siren-core-modules.el
+++ b/core/siren-core-modules.el
@@ -219,12 +219,15 @@
 (require 'siren-terraform)
 (require 'siren-thrift)
 (require 'siren-toml)
-(require 'siren-typescript)
 (require 'siren-vue)
 (require 'siren-web-mode)
 (require 'siren-x509)
 (require 'siren-xml)
 (require 'siren-yaml)
 
+;; Languages that require Emacs' 29.x built-in treesit functionality.
+(when (fboundp 'treesit-ready-p)
+  (require 'siren-typescript))
+
 (provide 'siren-core-modules)
 ;;; siren-core-modules.el ends here
diff --git a/modules/languages/siren-typescript.el b/modules/languages/siren-typescript.el
index e0a3d80..c49d7db 100644
--- a/modules/languages/siren-typescript.el
+++ b/modules/languages/siren-typescript.el
@@ -8,52 +8,38 @@
 
 (require 'siren-flycheck)
 (require 'siren-lsp)
-(require 'siren-web-mode)
+(require 'siren-treesit)
 
-(use-package typescript-mode
-  :defer t
+(let ((repo "https://github.com/tree-sitter/tree-sitter-typescript")
+      (ref "v0.20.2"))
+  (siren-treesit-prepare
+   'typescript-ts-mode
+   `(typescript . (,repo ,ref "typescript/src")))
+  (siren-treesit-prepare
+   'tsx-ts-mode
+   `(tsx . (,repo ,ref "tsx/src"))))
+
+(use-package typescript-ts-mode
+  :straight (:type built-in)
   :mode "\\.ts\\'"
   :hook
-  (typescript-mode . siren-typescript-mode-setup)
+  (typescript-mode . siren-typescript-mode-setup))
 
-  :general
-  (:keymaps 'typescript-mode-map
-            "C-j" 'newline-and-indent)
-
-  :preface
-  (defun siren-typescript-mode-setup ()
-    (let ((width 2))
-      (setq-local typescript-indent-level width
-                  indent-level width
-                  tab-width width))
-
-    (lsp-deferred)
-    (flycheck-mode t)))
-
-(use-package tide
+(use-package tsx-ts-mode
+  :straight (:type built-in)
+  :mode "\\.tsx\\'"
   :hook
-  (typescript-mode . siren-tide-mode-setup)
-  (web-mode . siren-tide-web-mode-setup)
+  (typescript-mode . siren-typescript-mode-setup))
 
-  :preface
-  (defun siren-tide-web-mode-setup ()
-    (when (string-equal "tsx" (file-name-extension buffer-file-name))
-      (siren-tide-mode-setup)))
+(defun siren-typescript-mode-setup ()
+  "Default setup function for `typescript-mode' and `typescript-ts-mode'."
+  (let ((width 2))
+    (setq-local typescript-indent-level width
+                indent-level width
+                tab-width width))
 
-  (defun siren-tide-mode-setup ()
-    (interactive)
-    (tide-setup)
-
-    (setq-local flycheck-check-syntax-automatically '(save mode-enabled)
-                company-tooltip-align-annotations t)
-
-    (eldoc-mode t)
-    (tide-hl-identifier-mode t))
-
-  :init
-  (add-to-list 'auto-mode-alist '("\\.tsx\\'" . web-mode))
-  (with-eval-after-load 'flycheck
-    (flycheck-add-mode 'typescript-tslint 'web-mode)))
+  (lsp-deferred)
+  (flycheck-mode t))
 
 (provide 'siren-typescript)
 ;;; siren-typescript.el ends here
diff --git a/modules/text-editing/siren-treesit.el b/modules/text-editing/siren-treesit.el
new file mode 100644
index 0000000..05f8b44
--- /dev/null
+++ b/modules/text-editing/siren-treesit.el
@@ -0,0 +1,20 @@
+;;; siren-treesit.el --- jimeh's Emacs Siren: treesit
+
+;;; Commentary:
+
+;; Configuration for treesit
+
+;;; Code:
+
+(require 'treesit)
+
+(defun siren-treesit-prepare (mode source)
+  "Setup treesit for MODE with SOURCE."
+  (add-to-list 'treesit-language-source-alist source)
+  (let ((lang (car source)))
+    (advice-add mode :before `(lambda (&rest _)
+                                (when (not (treesit-ready-p ',lang))
+                                  (treesit-install-language-grammar ',lang))))))
+
+(provide 'siren-treesit)
+;;; siren-treesit.el ends here
diff --git a/straight/versions/default.el b/straight/versions/default.el
index 16889b3..e9fa031 100644
--- a/straight/versions/default.el
+++ b/straight/versions/default.el
@@ -215,12 +215,10 @@
  ("terraform-doc" . "16179e57ce290190c222b27961900657a1981330")
  ("terraform-mode" . "39d2fd5bfc86c6bf1c7bc38e6f0016d714f2d79d")
  ("themes" . "b5ff201f4bea4286e9ed015a2043cf2394182232")
- ("tide" . "29475d9eee26f4101322209e9b6b199df5386094")
  ("transient" . "239be53b01e003c5206087d850d9672a42dc4b32")
  ("tree-sitter-langs" . "1076cf2366be8ef1bd6fd7239f92f16cc0890fce")
  ("treemacs" . "9986d6cd3d2822db7ae0e6d8a275db7057f3e828")
  ("treepy.el" . "7c4a0d21322506a4d4b2301b4274ec955b429b47")
- ("typescript.el" . "4fcb4594819caf472ae42ea068a1c7795cf07f46")
  ("use-package" . "bcf0984cf55b70fe6896c6a15f61df92b24f8ffd")
  ("uuidgen-el" . "7b728c1d92e196c3acf87a004949335cfc18eab3")
  ("vertico" . "a595b05ecc87ce0cd6663f01727159e6640b2d2e")