diff --git a/Casks/emacs-app-good/meta.json b/Casks/emacs-app-good/meta.json
index 2f044ce3..6fed076e 100644
--- a/Casks/emacs-app-good/meta.json
+++ b/Casks/emacs-app-good/meta.json
@@ -101,6 +101,7 @@
       "emacs-app",
       "emacs-app-nightly",
       "emacs-app-nightly-28",
+      "emacs-app-nightly-29",
       "emacs-app-pretest",
       "emacs",
       "emacs-nightly",
diff --git a/Casks/emacs-app-nightly-28/meta.json b/Casks/emacs-app-nightly-28/meta.json
index c885ee4e..ef87e037 100644
--- a/Casks/emacs-app-nightly-28/meta.json
+++ b/Casks/emacs-app-nightly-28/meta.json
@@ -101,6 +101,7 @@
       "emacs-app",
       "emacs-app-good",
       "emacs-app-nightly",
+      "emacs-app-nightly-29",
       "emacs-app-pretest",
       "emacs",
       "emacs-nightly",
diff --git a/Casks/emacs-app-nightly-29/meta.json b/Casks/emacs-app-nightly-29/meta.json
new file mode 100644
index 00000000..12b07fac
--- /dev/null
+++ b/Casks/emacs-app-nightly-29/meta.json
@@ -0,0 +1,119 @@
+{
+  "token": "emacs-app-nightly-29",
+  "full_token": "jimeh/emacs-builds/emacs-app-nightly-29",
+  "tap": "jimeh/emacs-builds",
+  "name": [
+    "Emacs"
+  ],
+  "desc": "GNU Emacs text editor (nightly build of emacs-29 branch)",
+  "homepage": "https://github.com/jimeh/emacs-builds",
+  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs.2023-01-23.c15c0f7.emacs-29/Emacs.2023-01-23.c15c0f7.emacs-29.macOS-11.x86_64.dmg",
+  "appcast": null,
+  "version": "2023-01-23.c15c0f7.emacs-29",
+  "versions": {},
+  "installed": null,
+  "outdated": false,
+  "sha256": "f2faf33b3784898989b7bd1c3cb7e87fc032a04c816ad7f9a863f5fc0af13e42",
+  "artifacts": [
+    {
+      "app": [
+        "Emacs.app"
+      ]
+    },
+    {
+      "binary": [
+        "/Applications/Emacs.app/Contents/MacOS/bin/ebrowse"
+      ]
+    },
+    {
+      "binary": [
+        "/Applications/Emacs.app/Contents/MacOS/bin/emacs"
+      ]
+    },
+    {
+      "binary": [
+        "/Applications/Emacs.app/Contents/MacOS/bin/emacsclient"
+      ]
+    },
+    {
+      "binary": [
+        "/Applications/Emacs.app/Contents/MacOS/bin/etags"
+      ]
+    },
+    {
+      "binary": [
+        "/Applications/Emacs.app/Contents/Resources/include/emacs-module.h",
+        {
+          "target": "$(brew --prefix)/include/emacs-module.h"
+        }
+      ]
+    },
+    {
+      "binary": [
+        "/Applications/Emacs.app/Contents/Resources/site-lisp/subdirs.el",
+        {
+          "target": "$(brew --prefix)/share/emacs/site-lisp/subdirs.el"
+        }
+      ]
+    },
+    {
+      "manpage": [
+        "/Applications/Emacs.app/Contents/Resources/man/man1/ebrowse.1.gz"
+      ]
+    },
+    {
+      "manpage": [
+        "/Applications/Emacs.app/Contents/Resources/man/man1/emacs.1.gz"
+      ]
+    },
+    {
+      "manpage": [
+        "/Applications/Emacs.app/Contents/Resources/man/man1/emacsclient.1.gz"
+      ]
+    },
+    {
+      "manpage": [
+        "/Applications/Emacs.app/Contents/Resources/man/man1/etags.1.gz"
+      ]
+    },
+    {
+      "zap": [
+        {
+          "trash": [
+            "~/Library/Caches/org.gnu.Emacs",
+            "~/Library/Preferences/org.gnu.Emacs.plist",
+            "~/Library/Saved Application State/org.gnu.Emacs.savedState"
+          ]
+        }
+      ]
+    }
+  ],
+  "caveats": null,
+  "depends_on": {
+    "macos": {
+      ">=": [
+        "11"
+      ]
+    }
+  },
+  "conflicts_with": {
+    "cask": [
+      "emacs-app",
+      "emacs-app-good",
+      "emacs-app-nightly",
+      "emacs-app-nightly-28",
+      "emacs-app-pretest",
+      "emacs",
+      "emacs-nightly",
+      "emacs-pretest",
+      "emacs-mac",
+      "emacs-mac-spacemacs-icon"
+    ],
+    "formula": [
+      "emacs",
+      "emacs-mac"
+    ]
+  },
+  "container": null,
+  "auto_updates": null
+}
diff --git a/Casks/emacs-app-nightly-29/shield.json b/Casks/emacs-app-nightly-29/shield.json
new file mode 100644
index 00000000..fdc4916f
--- /dev/null
+++ b/Casks/emacs-app-nightly-29/shield.json
@@ -0,0 +1,9 @@
+{
+  "schemaVersion": 1,
+  "style": "flat",
+  "color": "#7F5AB6",
+  "namedLogo": "GNU Emacs",
+  "logoColor": "white",
+  "label": "nightly@emacs-29",
+  "message": "2023-01-23.c15c0f7.emacs-29"
+}
diff --git a/Casks/emacs-app-nightly/meta.json b/Casks/emacs-app-nightly/meta.json
index bd4e2c4f..2f1bfb90 100644
--- a/Casks/emacs-app-nightly/meta.json
+++ b/Casks/emacs-app-nightly/meta.json
@@ -101,6 +101,7 @@
       "emacs-app",
       "emacs-app-good",
       "emacs-app-nightly-28",
+      "emacs-app-nightly-29",
       "emacs-app-pretest",
       "emacs",
       "emacs-nightly",
diff --git a/Casks/emacs-app-pretest/meta.json b/Casks/emacs-app-pretest/meta.json
index 1865745a..fa6ddf0c 100644
--- a/Casks/emacs-app-pretest/meta.json
+++ b/Casks/emacs-app-pretest/meta.json
@@ -102,6 +102,7 @@
       "emacs-app-good",
       "emacs-app-nightly",
       "emacs-app-nightly-28",
+      "emacs-app-nightly-29",
       "emacs",
       "emacs-nightly",
       "emacs-pretest",
diff --git a/Casks/emacs-app/meta.json b/Casks/emacs-app/meta.json
index cf71dc40..6762948a 100644
--- a/Casks/emacs-app/meta.json
+++ b/Casks/emacs-app/meta.json
@@ -101,6 +101,7 @@
       "emacs-app-good",
       "emacs-app-nightly",
       "emacs-app-nightly-28",
+      "emacs-app-nightly-29",
       "emacs-app-pretest",
       "emacs",
       "emacs-nightly",
diff --git a/templates/Casks/emacs-app-nightly-29/shield.json.tpl b/templates/Casks/emacs-app-nightly-29/shield.json.tpl
new file mode 100644
index 00000000..a81c0c92
--- /dev/null
+++ b/templates/Casks/emacs-app-nightly-29/shield.json.tpl
@@ -0,0 +1,9 @@
+{
+  schemaVersion: 1,
+  style: "flat",
+  color: "#7F5AB6",
+  namedLogo: "GNU Emacs",
+  logoColor: "white",
+  label: "nightly@emacs-29",
+  message: .version
+}