diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 21fbce026f5..b4e5cc25af3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ci-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
 jobs:
   check:
     name: Check
@@ -14,6 +18,11 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
@@ -47,6 +56,11 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
@@ -63,18 +77,25 @@ jobs:
 
   mobile_native_static_analysis:
     name: Mobile Native Static Analysis
-    runs-on: blacksmith-12vcpu-macos-26
+    runs-on: blacksmith-6vcpu-macos-26
     timeout-minutes: 10
     steps:
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
         with:
           node-version-file: package.json
           cache: true
-          run-install: true
+          run-install: |
+            args:
+              - --filter=@t3tools/scripts...
 
       - name: Install mobile native static analysis tools
         run: brew bundle install --file apps/mobile/Brewfile
@@ -89,13 +110,20 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
         with:
           node-version-file: package.json
           cache: true
-          run-install: true
+          run-install: |
+            args:
+              - --filter=@t3tools/scripts...
 
       - name: Exercise release-only workflow steps
         run: node scripts/release-smoke.ts
diff --git a/.github/workflows/deploy-relay.yml b/.github/workflows/deploy-relay.yml
index 94d4af17e41..f652844a54f 100644
--- a/.github/workflows/deploy-relay.yml
+++ b/.github/workflows/deploy-relay.yml
@@ -38,13 +38,20 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
         with:
           node-version-file: package.json
           cache: true
-          run-install: true
+          run-install: |
+            args:
+              - --filter=t3code-relay...
 
       - name: Deploy production relay stage
         id: deploy
diff --git a/.github/workflows/mobile-eas-preview.yml b/.github/workflows/mobile-eas-preview.yml
index 32e45fef54e..d8b07208c13 100644
--- a/.github/workflows/mobile-eas-preview.yml
+++ b/.github/workflows/mobile-eas-preview.yml
@@ -2,13 +2,18 @@ name: Mobile EAS Preview
 
 on:
   pull_request:
-    types: [opened, reopened, synchronize, labeled, unlabeled]
+    types: [opened, reopened, synchronize, labeled]
 
 jobs:
   preview:
     name: EAS Preview
-    if: contains(github.event.pull_request.labels.*.name, '🚀 Mobile Continuous Deployment')
+    if: |
+      contains(github.event.pull_request.labels.*.name, '🚀 Mobile Continuous Deployment') &&
+      (github.event.action != 'labeled' || github.event.label.name == '🚀 Mobile Continuous Deployment')
     runs-on: blacksmith-8vcpu-ubuntu-2404
+    concurrency:
+      group: mobile-eas-preview-${{ github.event.pull_request.number }}
+      cancel-in-progress: true
     permissions:
       contents: read
       pull-requests: write
@@ -34,6 +39,10 @@ jobs:
         uses: actions/checkout@v6
         with:
           fetch-depth: 0
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         if: steps.expo-token.outputs.present == 'true'
@@ -41,7 +50,9 @@ jobs:
         with:
           node-version-file: package.json
           cache: true
-          run-install: true
+          run-install: |
+            args:
+              - --filter=@t3tools/mobile...
 
       - name: Expose pnpm
         if: steps.expo-token.outputs.present == 'true'
diff --git a/.github/workflows/mobile-eas-production.yml b/.github/workflows/mobile-eas-production.yml
index 685df85e57c..95cd0ddacc8 100644
--- a/.github/workflows/mobile-eas-production.yml
+++ b/.github/workflows/mobile-eas-production.yml
@@ -57,6 +57,10 @@ jobs:
         uses: actions/checkout@v6
         with:
           fetch-depth: 0
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         if: steps.expo-token.outputs.present == 'true'
@@ -64,7 +68,9 @@ jobs:
         with:
           node-version-file: package.json
           cache: true
-          run-install: true
+          run-install: |
+            args:
+              - --filter=@t3tools/mobile...
 
       - name: Expose pnpm
         if: steps.expo-token.outputs.present == 'true'
diff --git a/.github/workflows/mobile-showcase-screenshots.yml b/.github/workflows/mobile-showcase-screenshots.yml
index 36dfb61f73f..0aa9f30a2ff 100644
--- a/.github/workflows/mobile-showcase-screenshots.yml
+++ b/.github/workflows/mobile-showcase-screenshots.yml
@@ -37,13 +37,21 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
         with:
           node-version-file: package.json
           cache: true
-          run-install: true
+          run-install: |
+            args:
+              - --filter=@t3tools/mobile...
+              - --filter=@t3tools/scripts...
 
       - name: Expose pnpm
         run: |
@@ -77,13 +85,21 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v6
+        with:
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
         with:
           node-version-file: package.json
           cache: true
-          run-install: true
+          run-install: |
+            args:
+              - --filter=@t3tools/mobile...
+              - --filter=@t3tools/scripts...
 
       - name: Expose pnpm
         run: |
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f6e876bde5c..4a391791a26 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -38,6 +38,10 @@ jobs:
         uses: actions/checkout@v6
         with:
           fetch-depth: 0
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - id: check
         name: Compare HEAD to last nightly tag
@@ -84,6 +88,10 @@ jobs:
         uses: actions/checkout@v6
         with:
           fetch-depth: 0
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
@@ -192,6 +200,10 @@ jobs:
         uses: actions/checkout@v6
         with:
           ref: ${{ needs.preflight.outputs.ref }}
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
@@ -269,14 +281,19 @@ jobs:
         uses: actions/checkout@v6
         with:
           ref: ${{ needs.preflight.outputs.ref }}
-          fetch-depth: 0
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
         with:
           node-version-file: package.json
           cache: true
-          run-install: true
+          run-install: |
+            args:
+              - --filter=t3...
 
       - name: Build node-pty linux-x64 prebuild
         shell: bash
@@ -351,14 +368,21 @@ jobs:
         uses: actions/checkout@v6
         with:
           ref: ${{ needs.preflight.outputs.ref }}
-          fetch-depth: 0
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
         with:
           node-version-file: package.json
           cache: true
-          run-install: true
+          run-install: |
+            args:
+              - --filter=@t3tools/desktop...
+              - --filter=t3...
+              - --filter=@t3tools/scripts...
 
       - name: Download relay client tracing config
         uses: actions/download-artifact@v8
@@ -624,6 +648,10 @@ jobs:
         uses: actions/checkout@v6
         with:
           ref: ${{ needs.preflight.outputs.ref }}
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
@@ -681,6 +709,10 @@ jobs:
         uses: actions/checkout@v6
         with:
           ref: ${{ needs.preflight.outputs.ref }}
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
@@ -802,6 +834,10 @@ jobs:
         uses: actions/checkout@v6
         with:
           ref: ${{ needs.preflight.outputs.ref }}
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1
@@ -916,6 +952,10 @@ jobs:
           fetch-depth: 0
           token: ${{ steps.app_token.outputs.token }}
           persist-credentials: true
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - id: app_bot
         name: Resolve GitHub App bot identity
@@ -986,6 +1026,10 @@ jobs:
         uses: actions/checkout@v6
         with:
           ref: ${{ needs.preflight.outputs.ref }}
+          sparse-checkout: |
+            /*
+            !/.repos/
+          sparse-checkout-cone-mode: false
 
       - name: Setup Vite+
         uses: voidzero-dev/setup-vp@v1