Try splitsh

.github/subtree-splitter-config.json

@@ -0,0 +1,9 @@
+{
+    "sub-splits": [
+        {
+            "name": "core",
+            "directory": "packages/sprinkle-core",
+            "target": "git@github.com:userfrosting/sprinkle-core.git"
+        }
+    ]
+}

.github/workflows/Monorepo.yml

@@ -1,70 +1,47 @@
-name: Monorepo Split
-
 on:
   push:
-    branches: ['*']
-    tags: ['*']
-  workflow_dispatch:
-
-env:
-  GITHUB_TOKEN: ${{ secrets.ACCESS_TOKEN }}
+    # Only trigger for specific branches or changes in specific paths.
+    branches:
+      - "*"
+    # paths:
+    #   - src/**
+    # Tag push events should be ignored, they will be handled with the create event below.
+    tags-ignore:
+      - "*"
+#   create:
+#     tags:
+#       - "*"
+#   delete:
+#     tags:
+#       - "*"
 
 jobs:
-    packages_split:
+    sync_commits:
         runs-on: ubuntu-latest
-        name: Split Monorepo - ${{ matrix.package.name }}
-
-        strategy:
-            fail-fast: false
-            matrix:
-                package:
-                    - name: "Framework"
-                      local_path: "packages/framework"
-                      split_repository: "framework"
-                      branch: "6.0"
-                    - name: "Skeleton"
-                      local_path: "packages/skeleton"
-                      split_repository: "UserFrosting"
-                      branch: "6.0"
-                    - name: "Sprinkle Account"
-                      local_path: "packages/sprinkle-account"
-                      split_repository: "sprinkle-account"
-                      branch: "6.0"
-                    - name: "Sprinkle Admin"
-                      local_path: "packages/sprinkle-admin"
-                      split_repository: "sprinkle-admin"
-                      branch: "6.0"
-                    - name: "Sprinkle Core"
-                      local_path: "packages/sprinkle-core"
-                      split_repository: "sprinkle-core"
-                      branch: "6.0"
-                    - name: "Pink Cupcake"
-                      local_path: "packages/theme-pink-cupcake"
-                      split_repository: "theme-pink-cupcake"
-                      branch: "main"
-
+        name: Sync commits
+        if: github.repository == 'userfrosting/monorepo' # Execute this workflow job only on the main repository.
         steps:
             - uses: actions/checkout@v2
+              with:
+                  persist-credentials: false
+                  fetch-depth: 0
 
-            # no tag
-            - if: ${{ !startsWith(github.ref, 'refs/tags/') }}
-              uses: "danharrin/monorepo-split-github-action@v2.3.0"
+            # Add a personal access token to the repository secrets. This will allow the splitter action to push the new commits
+            - uses: frankdejonge/use-github-token@1.0.2
               with:
-                  package_directory: "${{ matrix.package.local_path }}"
-                  repository_organization: "userfrosting"
-                  repository_name: "${{ matrix.package.split_repository }}"
+                  authentication: "username:${{ secrets.ACCESS_TOKEN }}"
                   user_name: "UserFrosting Bot"
                   user_email: "no-reply@userfrosting.com"
-                  branch: "${{ matrix.package.branch }}"
 
-            # with tag
-            - if: startsWith(github.ref, 'refs/tags/')
-              uses: "danharrin/monorepo-split-github-action@v2.3.0"
+            # Cache the splitsh executable to speedup future runs
+            - name: Cache splitsh-lite
+              uses: actions/cache@v2
               with:
-                  tag: ${GITHUB_REF#refs/tags/}
-                  package_directory: "${{ matrix.package.local_path }}"
-                  repository_organization: "userfrosting"
-                  repository_name: "${{ matrix.package.split_repository }}"
-                  user_name: "UserFrosting Bot"
-                  user_email: "no-reply@userfrosting.com"
-                  branch: "${{ matrix.package.branch }}"
+                  path: "./splitsh"
+                  key: "${{ runner.os }}-splitsh-v101"
+
+            # Sync commits and tags for the configured subtree splits
+            - name: subtree split
+              uses: acrobat/subtree-splitter@v1.1.3
+              with:
+                  config-path: .github/subtree-splitter-config.json # Reference the location where you saved your config file