diff --git a/.github/actions/composite/setupNode/action.yml b/.github/actions/composite/setupNode/action.yml
index aeade96bb623..91cb2fb06426 100644
--- a/.github/actions/composite/setupNode/action.yml
+++ b/.github/actions/composite/setupNode/action.yml
@@ -7,6 +7,13 @@ inputs:
     description: 'Indicates if node is set up for hybrid app'
     required: false
     default: 'false'
+  SEED_STICKY_DISKS:
+    description: |
+      'true' only in the seedStickyDisks workflow, which installs dependencies and nothing else.
+      Everywhere else the disks are mounted read-through so no job can persist build artifacts or
+      tool caches into the snapshot.
+    required: false
+    default: 'false'
 
 outputs:
   cache-hit:
@@ -36,6 +43,7 @@ runs:
       with:
         key: ${{ format('{0}-{1}-{2}-node-modules-{3}', github.repository, runner.os, runner.arch, inputs.IS_HYBRID_BUILD == 'true' && hashFiles('normalized-package-lock.json', 'patches/**', 'Mobile-Expensify/patches/**') || hashFiles('normalized-package-lock.json', 'patches/**')) }}
         path: node_modules
+        commit: ${{ inputs.SEED_STICKY_DISKS == 'true' && 'if-missing' || 'false' }}
 
     - id: stickydisk-old-dot-node-modules
       if: steps.runner-info.outputs.use-sticky-disk == 'true' && inputs.IS_HYBRID_BUILD == 'true'
@@ -43,6 +51,7 @@ runs:
       with:
         key: ${{ format('{0}-{1}-{2}-old-dot-node-modules-{3}', github.repository, runner.os, runner.arch, hashFiles('Mobile-Expensify/package-lock.json', 'Mobile-Expensify/patches/**')) }}
         path: Mobile-Expensify/node_modules
+        commit: ${{ inputs.SEED_STICKY_DISKS == 'true' && 'if-missing' || 'false' }}
 
     - id: stickydisk-npm
       if: steps.runner-info.outputs.use-sticky-disk == 'true'
@@ -50,6 +59,7 @@ runs:
       with:
         key: ${{ format('{0}-{1}-{2}-npm', github.repository, runner.os, runner.arch) }}
         path: ~/.npm
+        commit: on-change
 
     - id: cache-node-modules
       if: steps.runner-info.outputs.use-sticky-disk != 'true'
diff --git a/.github/workflows/seedStickyDisks.yml b/.github/workflows/seedStickyDisks.yml
new file mode 100644
index 000000000000..39246bb81e94
--- /dev/null
+++ b/.github/workflows/seedStickyDisks.yml
@@ -0,0 +1,39 @@
+name: Seed sticky disks
+
+on:
+  push:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+
+jobs:
+  seedStandalone:
+    name: Seed standalone node_modules
+    runs-on: blacksmith-2vcpu-ubuntu-2404
+    steps:
+      - name: Checkout
+        uses: useblacksmith/checkout@1c9394c220d293645707b625ba9d79685f093a8f # v1
+
+      - name: Setup Node (seed)
+        uses: ./.github/actions/composite/setupNode
+        with:
+          SEED_STICKY_DISKS: 'true'
+
+  seedHybrid:
+    name: Seed hybrid node_modules
+    runs-on: blacksmith-2vcpu-ubuntu-2404
+    steps:
+      - name: Checkout
+        uses: useblacksmith/checkout@1c9394c220d293645707b625ba9d79685f093a8f # v1
+        with:
+          submodules: true
+          token: ${{ secrets.OS_BOTIFY_TOKEN }}
+
+      - name: Setup Node (seed)
+        uses: ./.github/actions/composite/setupNode
+        with:
+          IS_HYBRID_BUILD: 'true'
+          SEED_STICKY_DISKS: 'true'