diff --git a/Casks/emacs-app-good/meta.json b/Casks/emacs-app-good/meta.json
index 7e8a805e..9d63de46 100644
--- a/Casks/emacs-app-good/meta.json
+++ b/Casks/emacs-app-good/meta.json
@@ -69,16 +69,14 @@
       ">=": [
         "10.15"
       ]
-    },
-    "formula": [
-      "gcc"
-    ]
+    }
   },
   "conflicts_with": {
     "cask": [
+      "emacs-app",
       "emacs-app-nightly",
       "emacs-app-nightly-28",
-      "emacs-app",
+      "emacs-app-pretest",
       "emacs",
       "emacs-nightly",
       "emacs-pretest",
diff --git a/Casks/emacs-app-nightly-28/meta.json b/Casks/emacs-app-nightly-28/meta.json
index e432567c..9629b86a 100644
--- a/Casks/emacs-app-nightly-28/meta.json
+++ b/Casks/emacs-app-nightly-28/meta.json
@@ -69,16 +69,14 @@
       ">=": [
         "10.15"
       ]
-    },
-    "formula": [
-      "gcc"
-    ]
+    }
   },
   "conflicts_with": {
     "cask": [
       "emacs-app",
-      "emacs-app-nightly",
       "emacs-app-good",
+      "emacs-app-nightly",
+      "emacs-app-pretest",
       "emacs",
       "emacs-nightly",
       "emacs-pretest",
diff --git a/Casks/emacs-app-nightly/meta.json b/Casks/emacs-app-nightly/meta.json
index 18708a93..e19b8457 100644
--- a/Casks/emacs-app-nightly/meta.json
+++ b/Casks/emacs-app-nightly/meta.json
@@ -69,16 +69,14 @@
       ">=": [
         "10.15"
       ]
-    },
-    "formula": [
-      "gcc"
-    ]
+    }
   },
   "conflicts_with": {
     "cask": [
       "emacs-app",
-      "emacs-app-nightly-28",
       "emacs-app-good",
+      "emacs-app-nightly-28",
+      "emacs-app-pretest",
       "emacs",
       "emacs-nightly",
       "emacs-pretest",
diff --git a/Casks/emacs-app-pretest/meta.json b/Casks/emacs-app-pretest/meta.json
new file mode 100644
index 00000000..1a30c6da
--- /dev/null
+++ b/Casks/emacs-app-pretest/meta.json
@@ -0,0 +1,93 @@
+{
+  "token": "emacs-app-pretest",
+  "full_token": "jimeh/emacs-builds/emacs-app-pretest",
+  "tap": "jimeh/emacs-builds",
+  "name": [
+    "Emacs"
+  ],
+  "desc": "GNU Emacs text editor (latest pretest)",
+  "homepage": "https://github.com/jimeh/emacs-builds",
+  "url": "https://github.com/jimeh/emacs-builds/releases/download/Emacs-28.0.91-pretest/Emacs.2022-01-08.d193801.emacs-28-0-91-pretest.macOS-10-15.x86_64.dmg",
+  "appcast": null,
+  "version": "28.0.91-pretest",
+  "versions": {},
+  "installed": null,
+  "outdated": false,
+  "sha256": "d2cae876b2a6f58a9a6af52244a8693f1d4a5c0669f402debefaf184b44225b8",
+  "artifacts": [
+    [
+      "Emacs.app"
+    ],
+    [
+      "/Applications/Emacs.app/Contents/MacOS/bin/ebrowse"
+    ],
+    [
+      "/Applications/Emacs.app/Contents/MacOS/bin/emacs"
+    ],
+    [
+      "/Applications/Emacs.app/Contents/MacOS/bin/emacsclient"
+    ],
+    [
+      "/Applications/Emacs.app/Contents/MacOS/bin/etags"
+    ],
+    [
+      "/Applications/Emacs.app/Contents/Resources/include/emacs-module.h",
+      {
+        "target": "$(brew --prefix)/include/emacs-module.h"
+      }
+    ],
+    [
+      "/Applications/Emacs.app/Contents/Resources/site-lisp/subdirs.el",
+      {
+        "target": "$(brew --prefix)/share/emacs/site-lisp/subdirs.el"
+      }
+    ],
+    [
+      "/Applications/Emacs.app/Contents/Resources/man/man1/ebrowse.1.gz"
+    ],
+    [
+      "/Applications/Emacs.app/Contents/Resources/man/man1/emacs.1.gz"
+    ],
+    [
+      "/Applications/Emacs.app/Contents/Resources/man/man1/emacsclient.1.gz"
+    ],
+    [
+      "/Applications/Emacs.app/Contents/Resources/man/man1/etags.1.gz"
+    ],
+    {
+      "trash": [
+        "~/Library/Caches/org.gnu.Emacs",
+        "~/Library/Preferences/org.gnu.Emacs.plist",
+        "~/Library/Saved Application State/org.gnu.Emacs.savedState"
+      ],
+      "signal": {}
+    }
+  ],
+  "caveats": null,
+  "depends_on": {
+    "macos": {
+      ">=": [
+        "10.15"
+      ]
+    }
+  },
+  "conflicts_with": {
+    "cask": [
+      "emacs-app",
+      "emacs-app-good",
+      "emacs-app-nightly",
+      "emacs-app-nightly-28",
+      "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-pretest/shield.json b/Casks/emacs-app-pretest/shield.json
new file mode 100644
index 00000000..bc9032c4
--- /dev/null
+++ b/Casks/emacs-app-pretest/shield.json
@@ -0,0 +1,9 @@
+{
+  "schemaVersion": 1,
+  "style": "flat",
+  "color": "#7F5AB6",
+  "namedLogo": "GNU Emacs",
+  "logoColor": "white",
+  "label": "pretest",
+  "message": "28.0.91-pretest"
+}
diff --git a/Casks/emacs-app/meta.json b/Casks/emacs-app/meta.json
index 19d13069..30327ea8 100644
--- a/Casks/emacs-app/meta.json
+++ b/Casks/emacs-app/meta.json
@@ -69,19 +69,14 @@
       ">=": [
         "10.15"
       ]
-    },
-    "arch": [
-      {
-        "type": "intel",
-        "bits": 64
-      }
-    ]
+    }
   },
   "conflicts_with": {
     "cask": [
+      "emacs-app-good",
       "emacs-app-nightly",
       "emacs-app-nightly-28",
-      "emacs-app-good",
+      "emacs-app-pretest",
       "emacs",
       "emacs-nightly",
       "emacs-pretest",