diff --git a/.github/subtrees.json b/.github/subtrees.json
index 2e7193a9..fed22388 100644
--- a/.github/subtrees.json
+++ b/.github/subtrees.json
@@ -1,37 +1,30 @@
 [
   {
     "prefix": "src",
-    "url": "git@${CI_SERVER_HOST}:${GROUP}-subtrees/iphreeqc-src.git",
     "repo": "usgs-coupled-subtrees/iphreeqc-src"
   },
   {
     "prefix": "examples/c",
-    "url": "git@${CI_SERVER_HOST}:${GROUP}-subtrees/phreeqc-commanuscript-cgfinal-examples-c.git",
     "repo": "usgs-coupled-subtrees/phreeqc-commanuscript-cgfinal-examples-c"
   },
   {
     "prefix": "examples/com",
-    "url": "git@${CI_SERVER_HOST}:${GROUP}-subtrees/phreeqc-commanuscript-cgfinal-examples-com.git",
     "repo": "usgs-coupled-subtrees/phreeqc-commanuscript-cgfinal-examples-com"
   },
   {
     "prefix": "examples/fortran",
-    "url": "git@${CI_SERVER_HOST}:${GROUP}-subtrees/phreeqc-COMManuscript-CGfinal-examples-fortran.git",
     "repo": "usgs-coupled-subtrees/phreeqc-COMManuscript-CGfinal-examples-fortran"
   },
   {
     "prefix": "database",
-    "url": "git@${CI_SERVER_HOST}:${GROUP}-subtrees/phreeqc3-database.git",
     "repo": "usgs-coupled-subtrees/phreeqc3-database"
   },
   {
     "prefix": "phreeqc3-doc",
-    "url": "git@${CI_SERVER_HOST}:${GROUP}-subtrees/phreeqc3-doc.git",
     "repo": "usgs-coupled-subtrees/phreeqc3-doc"
   },
   {
     "prefix": "phreeqc3-examples",
-    "url": "git@${CI_SERVER_HOST}:${GROUP}-subtrees/phreeqc3-examples.git",
     "repo": "usgs-coupled-subtrees/phreeqc3-examples"
   }
 ]
\ No newline at end of file
diff --git a/.github/workflows/lint-subtrees.yml b/.github/workflows/lint-subtrees.yml
index 60661485..71d8e58f 100644
--- a/.github/workflows/lint-subtrees.yml
+++ b/.github/workflows/lint-subtrees.yml
@@ -14,6 +14,6 @@ jobs:
       CI_SERVER_HOST: github.com
       GROUP: usgs-coupled
     steps:
-      - uses: usgs-coupled/sync-subtrees-action/lint-subtrees/@main
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-subtrees/@main
         with:
           ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/.github/workflows/subtree.yml b/.github/workflows/subtree.yml
index 6dda6cf6..b4527205 100644
--- a/.github/workflows/subtree.yml
+++ b/.github/workflows/subtree.yml
@@ -1,12 +1,15 @@
 name: Sync Subtrees
 
 on:
+  push:
+    branches:
+      - master
   workflow_dispatch:
     inputs:
       dryRun:
         description: 'If true, don’t push any changes (for testing only).'
         required: true
-        default: true
+        default: false
         type: boolean
       testMerge:
         description: 'Run in test mode, pushing to a test branch.'
@@ -16,6 +19,7 @@ on:
 
 jobs:
   sync-subtrees:
+    if: startsWith(github.repository, 'usgs-coupled-subtrees/')
     runs-on: ubuntu-latest
     env:
       CI_SERVER_HOST: github.com
@@ -23,7 +27,7 @@ jobs:
       GH_TOKEN: ${{ secrets.WORKFLOW_PAT }}
     steps:
       - name: Run sync-subtrees-action
-        uses: usgs-coupled/sync-subtrees-action@main
+        uses: usgs-coupled-subtrees/sync-subtrees-action@main
         with:
           dryRun: ${{ inputs.dryRun }}
           testMerge: ${{ inputs.testMerge }}
diff --git a/database/.github/subtrees.json b/database/.github/subtrees.json
new file mode 100644
index 00000000..fe51488c
--- /dev/null
+++ b/database/.github/subtrees.json
@@ -0,0 +1 @@
+[]
diff --git a/database/.github/superprojects.json b/database/.github/superprojects.json
new file mode 100644
index 00000000..c1048e5a
--- /dev/null
+++ b/database/.github/superprojects.json
@@ -0,0 +1,11 @@
+{
+  "usgs-coupled-subtrees/phreeqc3-database": {
+    "superprojects": [
+      "usgs-coupled-subtrees/iphreeqc",
+      "usgs-coupled-subtrees/iphreeqccom",
+      "usgs-coupled-subtrees/phreeqcrm",
+      "usgs-coupled-subtrees/phreeqc3",
+      "usgs-coupled-subtrees/wphast"
+    ]
+  }
+}
diff --git a/database/.github/workflows/lint-subtrees.yml b/database/.github/workflows/lint-subtrees.yml
new file mode 100644
index 00000000..71d8e58f
--- /dev/null
+++ b/database/.github/workflows/lint-subtrees.yml
@@ -0,0 +1,19 @@
+name: Lint subtrees.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/subtrees.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-subtrees:
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-subtrees/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/database/.github/workflows/lint-superprojects.yml b/database/.github/workflows/lint-superprojects.yml
new file mode 100644
index 00000000..c157704f
--- /dev/null
+++ b/database/.github/workflows/lint-superprojects.yml
@@ -0,0 +1,20 @@
+name: Lint superprojects.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/superprojects.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-superprojects:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-superprojects/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
+          # skip-repos: |
+          #   - usgs-coupled-subtrees/iphreeqccom
+          #   - usgs-coupled-subtrees/phreeqcrm-src
+
diff --git a/database/.github/workflows/subtree.yml b/database/.github/workflows/subtree.yml
new file mode 100644
index 00000000..b4527205
--- /dev/null
+++ b/database/.github/workflows/subtree.yml
@@ -0,0 +1,37 @@
+name: Sync Subtrees
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+    inputs:
+      dryRun:
+        description: 'If true, don’t push any changes (for testing only).'
+        required: true
+        default: false
+        type: boolean
+      testMerge:
+        description: 'Run in test mode, pushing to a test branch.'
+        required: true
+        default: false
+        type: boolean
+
+jobs:
+  sync-subtrees:
+    if: startsWith(github.repository, 'usgs-coupled-subtrees/')
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+      GH_TOKEN: ${{ secrets.WORKFLOW_PAT }}
+    steps:
+      - name: Run sync-subtrees-action
+        uses: usgs-coupled-subtrees/sync-subtrees-action@main
+        with:
+          dryRun: ${{ inputs.dryRun }}
+          testMerge: ${{ inputs.testMerge }}
+          repository_name: ${{ github.event.repository.name }}
+          default_branch: ${{ github.event.repository.default_branch }}
+          run_number: ${{ github.run_number }}
+          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/examples/c/.github/superprojects.json b/examples/c/.github/superprojects.json
new file mode 100644
index 00000000..c04bbc0d
--- /dev/null
+++ b/examples/c/.github/superprojects.json
@@ -0,0 +1,9 @@
+{
+  "usgs-coupled-subtrees/phreeqc-commanuscript-cgfinal-examples-c": {
+    "superprojects": [
+      "usgs-coupled-subtrees/iphreeqc",
+      "usgs-coupled-subtrees/iphreeqccom",
+      "usgs-coupled-subtrees/phreeqc"
+    ]
+  }
+}
diff --git a/examples/c/.github/workflows/lint-subtrees.yml b/examples/c/.github/workflows/lint-subtrees.yml
index 60661485..71d8e58f 100644
--- a/examples/c/.github/workflows/lint-subtrees.yml
+++ b/examples/c/.github/workflows/lint-subtrees.yml
@@ -14,6 +14,6 @@ jobs:
       CI_SERVER_HOST: github.com
       GROUP: usgs-coupled
     steps:
-      - uses: usgs-coupled/sync-subtrees-action/lint-subtrees/@main
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-subtrees/@main
         with:
           ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/examples/c/.github/workflows/lint-superprojects.yml b/examples/c/.github/workflows/lint-superprojects.yml
new file mode 100644
index 00000000..b46ff4bc
--- /dev/null
+++ b/examples/c/.github/workflows/lint-superprojects.yml
@@ -0,0 +1,16 @@
+name: Lint superprojects.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/superprojects.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-superprojects:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-superprojects/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/examples/c/.github/workflows/subtree.yml b/examples/c/.github/workflows/subtree.yml
index 6dda6cf6..b4527205 100644
--- a/examples/c/.github/workflows/subtree.yml
+++ b/examples/c/.github/workflows/subtree.yml
@@ -1,12 +1,15 @@
 name: Sync Subtrees
 
 on:
+  push:
+    branches:
+      - master
   workflow_dispatch:
     inputs:
       dryRun:
         description: 'If true, don’t push any changes (for testing only).'
         required: true
-        default: true
+        default: false
         type: boolean
       testMerge:
         description: 'Run in test mode, pushing to a test branch.'
@@ -16,6 +19,7 @@ on:
 
 jobs:
   sync-subtrees:
+    if: startsWith(github.repository, 'usgs-coupled-subtrees/')
     runs-on: ubuntu-latest
     env:
       CI_SERVER_HOST: github.com
@@ -23,7 +27,7 @@ jobs:
       GH_TOKEN: ${{ secrets.WORKFLOW_PAT }}
     steps:
       - name: Run sync-subtrees-action
-        uses: usgs-coupled/sync-subtrees-action@main
+        uses: usgs-coupled-subtrees/sync-subtrees-action@main
         with:
           dryRun: ${{ inputs.dryRun }}
           testMerge: ${{ inputs.testMerge }}
diff --git a/examples/com/.github/subtrees.json b/examples/com/.github/subtrees.json
new file mode 100644
index 00000000..fe51488c
--- /dev/null
+++ b/examples/com/.github/subtrees.json
@@ -0,0 +1 @@
+[]
diff --git a/examples/com/.github/superprojects.json b/examples/com/.github/superprojects.json
new file mode 100644
index 00000000..b865fe72
--- /dev/null
+++ b/examples/com/.github/superprojects.json
@@ -0,0 +1,9 @@
+{
+  "usgs-coupled-subtrees/phreeqc-commanuscript-cgfinal-examples-com": {
+    "superprojects": [
+      "usgs-coupled-subtrees/iphreeqc",
+      "usgs-coupled-subtrees/iphreeqccom",
+      "usgs-coupled-subtrees/phreeqc"
+    ]
+  }
+}
diff --git a/examples/com/.github/workflows/lint-subtrees.yml b/examples/com/.github/workflows/lint-subtrees.yml
new file mode 100644
index 00000000..71d8e58f
--- /dev/null
+++ b/examples/com/.github/workflows/lint-subtrees.yml
@@ -0,0 +1,19 @@
+name: Lint subtrees.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/subtrees.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-subtrees:
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-subtrees/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/examples/com/.github/workflows/lint-superprojects.yml b/examples/com/.github/workflows/lint-superprojects.yml
new file mode 100644
index 00000000..b46ff4bc
--- /dev/null
+++ b/examples/com/.github/workflows/lint-superprojects.yml
@@ -0,0 +1,16 @@
+name: Lint superprojects.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/superprojects.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-superprojects:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-superprojects/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/examples/com/.github/workflows/subtree.yml b/examples/com/.github/workflows/subtree.yml
new file mode 100644
index 00000000..b4527205
--- /dev/null
+++ b/examples/com/.github/workflows/subtree.yml
@@ -0,0 +1,37 @@
+name: Sync Subtrees
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+    inputs:
+      dryRun:
+        description: 'If true, don’t push any changes (for testing only).'
+        required: true
+        default: false
+        type: boolean
+      testMerge:
+        description: 'Run in test mode, pushing to a test branch.'
+        required: true
+        default: false
+        type: boolean
+
+jobs:
+  sync-subtrees:
+    if: startsWith(github.repository, 'usgs-coupled-subtrees/')
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+      GH_TOKEN: ${{ secrets.WORKFLOW_PAT }}
+    steps:
+      - name: Run sync-subtrees-action
+        uses: usgs-coupled-subtrees/sync-subtrees-action@main
+        with:
+          dryRun: ${{ inputs.dryRun }}
+          testMerge: ${{ inputs.testMerge }}
+          repository_name: ${{ github.event.repository.name }}
+          default_branch: ${{ github.event.repository.default_branch }}
+          run_number: ${{ github.run_number }}
+          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/examples/fortran/.github/subtrees.json b/examples/fortran/.github/subtrees.json
new file mode 100644
index 00000000..fe51488c
--- /dev/null
+++ b/examples/fortran/.github/subtrees.json
@@ -0,0 +1 @@
+[]
diff --git a/examples/fortran/.github/superprojects.json b/examples/fortran/.github/superprojects.json
new file mode 100644
index 00000000..951d3f2d
--- /dev/null
+++ b/examples/fortran/.github/superprojects.json
@@ -0,0 +1,9 @@
+{
+  "usgs-coupled-subtrees/phreeqc-COMManuscript-CGfinal-examples-fortran": {
+    "superprojects": [
+      "usgs-coupled-subtrees/iphreeqc",
+      "usgs-coupled-subtrees/iphreeqccom",
+      "usgs-coupled-subtrees/phreeqc"
+    ]
+  }
+}
diff --git a/examples/fortran/.github/workflows/lint-subtrees.yml b/examples/fortran/.github/workflows/lint-subtrees.yml
new file mode 100644
index 00000000..71d8e58f
--- /dev/null
+++ b/examples/fortran/.github/workflows/lint-subtrees.yml
@@ -0,0 +1,19 @@
+name: Lint subtrees.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/subtrees.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-subtrees:
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-subtrees/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/examples/fortran/.github/workflows/lint-superprojects.yml b/examples/fortran/.github/workflows/lint-superprojects.yml
new file mode 100644
index 00000000..b46ff4bc
--- /dev/null
+++ b/examples/fortran/.github/workflows/lint-superprojects.yml
@@ -0,0 +1,16 @@
+name: Lint superprojects.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/superprojects.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-superprojects:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-superprojects/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/examples/fortran/.github/workflows/subtree.yml b/examples/fortran/.github/workflows/subtree.yml
new file mode 100644
index 00000000..b4527205
--- /dev/null
+++ b/examples/fortran/.github/workflows/subtree.yml
@@ -0,0 +1,37 @@
+name: Sync Subtrees
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+    inputs:
+      dryRun:
+        description: 'If true, don’t push any changes (for testing only).'
+        required: true
+        default: false
+        type: boolean
+      testMerge:
+        description: 'Run in test mode, pushing to a test branch.'
+        required: true
+        default: false
+        type: boolean
+
+jobs:
+  sync-subtrees:
+    if: startsWith(github.repository, 'usgs-coupled-subtrees/')
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+      GH_TOKEN: ${{ secrets.WORKFLOW_PAT }}
+    steps:
+      - name: Run sync-subtrees-action
+        uses: usgs-coupled-subtrees/sync-subtrees-action@main
+        with:
+          dryRun: ${{ inputs.dryRun }}
+          testMerge: ${{ inputs.testMerge }}
+          repository_name: ${{ github.event.repository.name }}
+          default_branch: ${{ github.event.repository.default_branch }}
+          run_number: ${{ github.run_number }}
+          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/phreeqc3-doc/.github/subtrees.json b/phreeqc3-doc/.github/subtrees.json
new file mode 100644
index 00000000..fe51488c
--- /dev/null
+++ b/phreeqc3-doc/.github/subtrees.json
@@ -0,0 +1 @@
+[]
diff --git a/phreeqc3-doc/.github/superprojects.json b/phreeqc3-doc/.github/superprojects.json
new file mode 100644
index 00000000..837f958a
--- /dev/null
+++ b/phreeqc3-doc/.github/superprojects.json
@@ -0,0 +1,10 @@
+{
+  "usgs-coupled-subtrees/phreeqc3-doc": {
+    "superprojects": [
+      "usgs-coupled-subtrees/iphreeqc",
+      "usgs-coupled-subtrees/iphreeqccom",
+      "usgs-coupled-subtrees/phast3-doc",
+      "usgs-coupled-subtrees/phreeqc3"
+    ]
+  }
+}
diff --git a/phreeqc3-doc/.github/workflows/lint-subtrees.yml b/phreeqc3-doc/.github/workflows/lint-subtrees.yml
new file mode 100644
index 00000000..71d8e58f
--- /dev/null
+++ b/phreeqc3-doc/.github/workflows/lint-subtrees.yml
@@ -0,0 +1,19 @@
+name: Lint subtrees.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/subtrees.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-subtrees:
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-subtrees/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/phreeqc3-doc/.github/workflows/lint-superprojects.yml b/phreeqc3-doc/.github/workflows/lint-superprojects.yml
new file mode 100644
index 00000000..b46ff4bc
--- /dev/null
+++ b/phreeqc3-doc/.github/workflows/lint-superprojects.yml
@@ -0,0 +1,16 @@
+name: Lint superprojects.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/superprojects.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-superprojects:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-superprojects/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/phreeqc3-doc/.github/workflows/subtree.yml b/phreeqc3-doc/.github/workflows/subtree.yml
new file mode 100644
index 00000000..b4527205
--- /dev/null
+++ b/phreeqc3-doc/.github/workflows/subtree.yml
@@ -0,0 +1,37 @@
+name: Sync Subtrees
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+    inputs:
+      dryRun:
+        description: 'If true, don’t push any changes (for testing only).'
+        required: true
+        default: false
+        type: boolean
+      testMerge:
+        description: 'Run in test mode, pushing to a test branch.'
+        required: true
+        default: false
+        type: boolean
+
+jobs:
+  sync-subtrees:
+    if: startsWith(github.repository, 'usgs-coupled-subtrees/')
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+      GH_TOKEN: ${{ secrets.WORKFLOW_PAT }}
+    steps:
+      - name: Run sync-subtrees-action
+        uses: usgs-coupled-subtrees/sync-subtrees-action@main
+        with:
+          dryRun: ${{ inputs.dryRun }}
+          testMerge: ${{ inputs.testMerge }}
+          repository_name: ${{ github.event.repository.name }}
+          default_branch: ${{ github.event.repository.default_branch }}
+          run_number: ${{ github.run_number }}
+          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/phreeqc3-examples/.github/subtrees.json b/phreeqc3-examples/.github/subtrees.json
new file mode 100644
index 00000000..fe51488c
--- /dev/null
+++ b/phreeqc3-examples/.github/subtrees.json
@@ -0,0 +1 @@
+[]
diff --git a/phreeqc3-examples/.github/workflows/lint-subtrees.yml b/phreeqc3-examples/.github/workflows/lint-subtrees.yml
new file mode 100644
index 00000000..71d8e58f
--- /dev/null
+++ b/phreeqc3-examples/.github/workflows/lint-subtrees.yml
@@ -0,0 +1,19 @@
+name: Lint subtrees.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/subtrees.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-subtrees:
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-subtrees/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/phreeqc3-examples/.github/workflows/subtree.yml b/phreeqc3-examples/.github/workflows/subtree.yml
new file mode 100644
index 00000000..b4527205
--- /dev/null
+++ b/phreeqc3-examples/.github/workflows/subtree.yml
@@ -0,0 +1,37 @@
+name: Sync Subtrees
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+    inputs:
+      dryRun:
+        description: 'If true, don’t push any changes (for testing only).'
+        required: true
+        default: false
+        type: boolean
+      testMerge:
+        description: 'Run in test mode, pushing to a test branch.'
+        required: true
+        default: false
+        type: boolean
+
+jobs:
+  sync-subtrees:
+    if: startsWith(github.repository, 'usgs-coupled-subtrees/')
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+      GH_TOKEN: ${{ secrets.WORKFLOW_PAT }}
+    steps:
+      - name: Run sync-subtrees-action
+        uses: usgs-coupled-subtrees/sync-subtrees-action@main
+        with:
+          dryRun: ${{ inputs.dryRun }}
+          testMerge: ${{ inputs.testMerge }}
+          repository_name: ${{ github.event.repository.name }}
+          default_branch: ${{ github.event.repository.default_branch }}
+          run_number: ${{ github.run_number }}
+          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/src/.github/subtrees.json b/src/.github/subtrees.json
index 352be8c8..6d6f9b6e 100644
--- a/src/.github/subtrees.json
+++ b/src/.github/subtrees.json
@@ -1,7 +1,6 @@
 [
   {
     "prefix": "phreeqcpp",
-    "url": "git@${CI_SERVER_HOST}:${GROUP}-subtrees/phreeqc3-src.git",
     "repo": "usgs-coupled-subtrees/phreeqc3-src"
   }
-]
\ No newline at end of file
+]
diff --git a/src/.github/superprojects.json b/src/.github/superprojects.json
index 3dec8709..bbc77cf2 100644
--- a/src/.github/superprojects.json
+++ b/src/.github/superprojects.json
@@ -1,8 +1,8 @@
 {
-  "iphreeqc-src": {
+  "usgs-coupled-subtrees/iphreeqc-src": {
     "superprojects": [
-      "usgs-coupled/iphreeqc",
-      "usgs-coupled/iphreeqccom",
+      "usgs-coupled-subtrees/iphreeqc",
+      "usgs-coupled-subtrees/iphreeqccom",
       "usgs-coupled-subtrees/phreeqcrm-src"
     ]
   }
diff --git a/src/.github/workflows/lint-subtrees.yml b/src/.github/workflows/lint-subtrees.yml
index 4306e374..7af56b67 100644
--- a/src/.github/workflows/lint-subtrees.yml
+++ b/src/.github/workflows/lint-subtrees.yml
@@ -17,6 +17,6 @@ jobs:
       CI_SERVER_HOST: github.com
       GROUP: usgs-coupled
     steps:
-      - uses: usgs-coupled/sync-subtrees-action/lint-subtrees/@main
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-subtrees/@main
         with:
           ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/src/.github/workflows/lint-superprojects.yml b/src/.github/workflows/lint-superprojects.yml
index 3ab6debe..b46ff4bc 100644
--- a/src/.github/workflows/lint-superprojects.yml
+++ b/src/.github/workflows/lint-superprojects.yml
@@ -11,6 +11,6 @@ jobs:
   lint-superprojects:
     runs-on: ubuntu-latest
     steps:
-      - uses: usgs-coupled/sync-subtrees-action/lint-superprojects/@main
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-superprojects/@main
         with:
           ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/src/.github/workflows/subtree.yml b/src/.github/workflows/subtree.yml
index 1f62d41d..b4527205 100644
--- a/src/.github/workflows/subtree.yml
+++ b/src/.github/workflows/subtree.yml
@@ -1,12 +1,15 @@
 name: Sync Subtrees
 
 on:
+  push:
+    branches:
+      - master
   workflow_dispatch:
     inputs:
       dryRun:
         description: 'If true, don’t push any changes (for testing only).'
         required: true
-        default: true
+        default: false
         type: boolean
       testMerge:
         description: 'Run in test mode, pushing to a test branch.'
@@ -16,13 +19,15 @@ on:
 
 jobs:
   sync-subtrees:
+    if: startsWith(github.repository, 'usgs-coupled-subtrees/')
     runs-on: ubuntu-latest
     env:
       CI_SERVER_HOST: github.com
-      GROUP: usgs-coupled    
+      GROUP: usgs-coupled
+      GH_TOKEN: ${{ secrets.WORKFLOW_PAT }}
     steps:
       - name: Run sync-subtrees-action
-        uses: usgs-coupled/sync-subtrees-action@main
+        uses: usgs-coupled-subtrees/sync-subtrees-action@main
         with:
           dryRun: ${{ inputs.dryRun }}
           testMerge: ${{ inputs.testMerge }}
diff --git a/src/phreeqcpp/.github/subtrees.json b/src/phreeqcpp/.github/subtrees.json
index ff31b0dd..0791105f 100644
--- a/src/phreeqcpp/.github/subtrees.json
+++ b/src/phreeqcpp/.github/subtrees.json
@@ -1,7 +1,6 @@
 [
   {
     "prefix": "common",
-    "url": "git@${CI_SERVER_HOST}:${GROUP}-subtrees/phreeqc3-src-common.git",
     "repo": "usgs-coupled-subtrees/phreeqc3-src-common"
   }
-]
\ No newline at end of file
+]
diff --git a/src/phreeqcpp/.github/superprojects.json b/src/phreeqcpp/.github/superprojects.json
new file mode 100644
index 00000000..97e0591c
--- /dev/null
+++ b/src/phreeqcpp/.github/superprojects.json
@@ -0,0 +1,8 @@
+{
+  "usgs-coupled-subtrees/phreeqc3-src": {
+    "superprojects": [
+      "usgs-coupled-subtrees/iphreeqc-src",
+      "usgs-coupled-subtrees/phreeqc3"
+    ]
+  }
+}
diff --git a/src/phreeqcpp/.github/workflows/lint-subtrees.yml b/src/phreeqcpp/.github/workflows/lint-subtrees.yml
index 4306e374..7af56b67 100644
--- a/src/phreeqcpp/.github/workflows/lint-subtrees.yml
+++ b/src/phreeqcpp/.github/workflows/lint-subtrees.yml
@@ -17,6 +17,6 @@ jobs:
       CI_SERVER_HOST: github.com
       GROUP: usgs-coupled
     steps:
-      - uses: usgs-coupled/sync-subtrees-action/lint-subtrees/@main
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-subtrees/@main
         with:
           ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/src/phreeqcpp/.github/workflows/subtree.yml b/src/phreeqcpp/.github/workflows/subtree.yml
index 1f62d41d..b4527205 100644
--- a/src/phreeqcpp/.github/workflows/subtree.yml
+++ b/src/phreeqcpp/.github/workflows/subtree.yml
@@ -1,12 +1,15 @@
 name: Sync Subtrees
 
 on:
+  push:
+    branches:
+      - master
   workflow_dispatch:
     inputs:
       dryRun:
         description: 'If true, don’t push any changes (for testing only).'
         required: true
-        default: true
+        default: false
         type: boolean
       testMerge:
         description: 'Run in test mode, pushing to a test branch.'
@@ -16,13 +19,15 @@ on:
 
 jobs:
   sync-subtrees:
+    if: startsWith(github.repository, 'usgs-coupled-subtrees/')
     runs-on: ubuntu-latest
     env:
       CI_SERVER_HOST: github.com
-      GROUP: usgs-coupled    
+      GROUP: usgs-coupled
+      GH_TOKEN: ${{ secrets.WORKFLOW_PAT }}
     steps:
       - name: Run sync-subtrees-action
-        uses: usgs-coupled/sync-subtrees-action@main
+        uses: usgs-coupled-subtrees/sync-subtrees-action@main
         with:
           dryRun: ${{ inputs.dryRun }}
           testMerge: ${{ inputs.testMerge }}
diff --git a/src/phreeqcpp/common/.github/subtrees.json b/src/phreeqcpp/common/.github/subtrees.json
new file mode 100644
index 00000000..fe51488c
--- /dev/null
+++ b/src/phreeqcpp/common/.github/subtrees.json
@@ -0,0 +1 @@
+[]
diff --git a/src/phreeqcpp/common/.github/superprojects.json b/src/phreeqcpp/common/.github/superprojects.json
new file mode 100644
index 00000000..0bf12112
--- /dev/null
+++ b/src/phreeqcpp/common/.github/superprojects.json
@@ -0,0 +1,8 @@
+{
+  "usgs-coupled-subtrees/phreeqc3-src-common": {
+    "superprojects": [
+      "usgs-coupled-subtrees/phreeqc3-src",
+      "usgs-coupled-subtrees/wphast"
+    ]
+  }
+}
diff --git a/src/phreeqcpp/common/.github/workflows/lint-superprojects.yml b/src/phreeqcpp/common/.github/workflows/lint-superprojects.yml
new file mode 100644
index 00000000..b46ff4bc
--- /dev/null
+++ b/src/phreeqcpp/common/.github/workflows/lint-superprojects.yml
@@ -0,0 +1,16 @@
+name: Lint superprojects.json
+
+on:
+  pull_request:
+    paths:
+      - '.github/superprojects.json'
+  workflow_call:
+  workflow_dispatch:
+
+jobs:
+  lint-superprojects:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: usgs-coupled-subtrees/sync-subtrees-action/lint-superprojects/@main
+        with:
+          ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}
diff --git a/src/phreeqcpp/common/.github/workflows/subtree.yml b/src/phreeqcpp/common/.github/workflows/subtree.yml
new file mode 100644
index 00000000..b4527205
--- /dev/null
+++ b/src/phreeqcpp/common/.github/workflows/subtree.yml
@@ -0,0 +1,37 @@
+name: Sync Subtrees
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+    inputs:
+      dryRun:
+        description: 'If true, don’t push any changes (for testing only).'
+        required: true
+        default: false
+        type: boolean
+      testMerge:
+        description: 'Run in test mode, pushing to a test branch.'
+        required: true
+        default: false
+        type: boolean
+
+jobs:
+  sync-subtrees:
+    if: startsWith(github.repository, 'usgs-coupled-subtrees/')
+    runs-on: ubuntu-latest
+    env:
+      CI_SERVER_HOST: github.com
+      GROUP: usgs-coupled
+      GH_TOKEN: ${{ secrets.WORKFLOW_PAT }}
+    steps:
+      - name: Run sync-subtrees-action
+        uses: usgs-coupled-subtrees/sync-subtrees-action@main
+        with:
+          dryRun: ${{ inputs.dryRun }}
+          testMerge: ${{ inputs.testMerge }}
+          repository_name: ${{ github.event.repository.name }}
+          default_branch: ${{ github.event.repository.default_branch }}
+          run_number: ${{ github.run_number }}
+          ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}