diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
index 91596c57f814f..7dac855736f35 100644
--- a/.github/workflows/audit.yml
+++ b/.github/workflows/audit.yml
@@ -15,7 +15,7 @@ jobs:
   audit:
     name: Audit Dependencies
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-libnpmaccess.yml b/.github/workflows/ci-libnpmaccess.yml
index 0fc976d1eb1fb..3237bd93463ad 100644
--- a/.github/workflows/ci-libnpmaccess.yml
+++ b/.github/workflows/ci-libnpmaccess.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-libnpmdiff.yml b/.github/workflows/ci-libnpmdiff.yml
index 7e9353f67caa2..52ac3113b953e 100644
--- a/.github/workflows/ci-libnpmdiff.yml
+++ b/.github/workflows/ci-libnpmdiff.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-libnpmexec.yml b/.github/workflows/ci-libnpmexec.yml
index 65a92a65f5df6..222e4743c9c02 100644
--- a/.github/workflows/ci-libnpmexec.yml
+++ b/.github/workflows/ci-libnpmexec.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-libnpmfund.yml b/.github/workflows/ci-libnpmfund.yml
index 4b8ed23432de7..95ac7d66d3ca7 100644
--- a/.github/workflows/ci-libnpmfund.yml
+++ b/.github/workflows/ci-libnpmfund.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-libnpmorg.yml b/.github/workflows/ci-libnpmorg.yml
index 4dcf220e12bf3..b6d144f439dba 100644
--- a/.github/workflows/ci-libnpmorg.yml
+++ b/.github/workflows/ci-libnpmorg.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-libnpmpack.yml b/.github/workflows/ci-libnpmpack.yml
index aea7ea825a059..57b03d4e7b741 100644
--- a/.github/workflows/ci-libnpmpack.yml
+++ b/.github/workflows/ci-libnpmpack.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-libnpmpublish.yml b/.github/workflows/ci-libnpmpublish.yml
index 2209e32d3bc95..c45b88d7e61a8 100644
--- a/.github/workflows/ci-libnpmpublish.yml
+++ b/.github/workflows/ci-libnpmpublish.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-libnpmsearch.yml b/.github/workflows/ci-libnpmsearch.yml
index 231614b2e6278..bc6c13ac10436 100644
--- a/.github/workflows/ci-libnpmsearch.yml
+++ b/.github/workflows/ci-libnpmsearch.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-libnpmteam.yml b/.github/workflows/ci-libnpmteam.yml
index 4e6f22bdc615f..9a1a23518c9f1 100644
--- a/.github/workflows/ci-libnpmteam.yml
+++ b/.github/workflows/ci-libnpmteam.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-libnpmversion.yml b/.github/workflows/ci-libnpmversion.yml
index a2bf0f4c6f9cf..80a90ac741d09 100644
--- a/.github/workflows/ci-libnpmversion.yml
+++ b/.github/workflows/ci-libnpmversion.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-npmcli-arborist.yml b/.github/workflows/ci-npmcli-arborist.yml
index 2c6ad5c283876..d82b29c22e450 100644
--- a/.github/workflows/ci-npmcli-arborist.yml
+++ b/.github/workflows/ci-npmcli-arborist.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-npmcli-config.yml b/.github/workflows/ci-npmcli-config.yml
index 79f1f6797e526..80598a4bd0448 100644
--- a/.github/workflows/ci-npmcli-config.yml
+++ b/.github/workflows/ci-npmcli-config.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-npmcli-docs.yml b/.github/workflows/ci-npmcli-docs.yml
index f6540de9298f0..7f705f2a68cc0 100644
--- a/.github/workflows/ci-npmcli-docs.yml
+++ b/.github/workflows/ci-npmcli-docs.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
@@ -115,7 +115,7 @@ jobs:
   compare-docs:
     name: Compare Docs
     if: github.repository_owner == 'npm' && github.event_name == 'pull_request'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-npmcli-mock-globals.yml b/.github/workflows/ci-npmcli-mock-globals.yml
index d8788376a2416..62758a219e7a7 100644
--- a/.github/workflows/ci-npmcli-mock-globals.yml
+++ b/.github/workflows/ci-npmcli-mock-globals.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-npmcli-mock-registry.yml b/.github/workflows/ci-npmcli-mock-registry.yml
index 8a71330f47fd8..3aee5931c9f87 100644
--- a/.github/workflows/ci-npmcli-mock-registry.yml
+++ b/.github/workflows/ci-npmcli-mock-registry.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-npmcli-smoke-tests.yml b/.github/workflows/ci-npmcli-smoke-tests.yml
index bdbf6575cb7fd..fb3c5d1ac5779 100644
--- a/.github/workflows/ci-npmcli-smoke-tests.yml
+++ b/.github/workflows/ci-npmcli-smoke-tests.yml
@@ -24,7 +24,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci-release.yml b/.github/workflows/ci-release.yml
index 7268747be60f1..ad70d5cff0760 100644
--- a/.github/workflows/ci-release.yml
+++ b/.github/workflows/ci-release.yml
@@ -26,7 +26,7 @@ jobs:
   lint-all:
     name: Lint All
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 04d0e03d884a6..fdd80d0d6e5db 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,7 +32,7 @@ jobs:
   lint:
     name: Lint
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
@@ -124,7 +124,7 @@ jobs:
   licenses:
     name: Check Licenses
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
@@ -156,7 +156,7 @@ jobs:
     # are likely broken on Windows as well.	
     name: Smoke Tests
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
@@ -205,7 +205,7 @@ jobs:
     # are likely broken on Windows as well.	
     name: Publish Dry-Run
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
@@ -249,7 +249,7 @@ jobs:
 
   windows-shims:
     name: Windows Shims Tests
-    runs-on: windows-latest
+    runs-on: blacksmith-4vcpu-windows-2025
     defaults:
       run:
         shell: cmd
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 03163a4da7721..af5c4222c0dc8 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -21,7 +21,7 @@ permissions:
 jobs:
   analyze:
     name: Analyze
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     permissions:
       actions: read
       contents: read
diff --git a/.github/workflows/create-node-pr.yml b/.github/workflows/create-node-pr.yml
index 3444c8c16fc30..36df5fb73e37a 100644
--- a/.github/workflows/create-node-pr.yml
+++ b/.github/workflows/create-node-pr.yml
@@ -23,7 +23,7 @@ jobs:
   create-pull-request:
     name: Create Node PR
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/node-integration.yml b/.github/workflows/node-integration.yml
index 054b7f1b657a7..1e8387c372464 100644
--- a/.github/workflows/node-integration.yml
+++ b/.github/workflows/node-integration.yml
@@ -42,7 +42,7 @@ on:
 jobs:
   build-nodejs:
     name: build nodejs@${{ inputs.nodeVersion }} npm@${{ inputs.npmVersion }}
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     outputs:
       nodeVersion: ${{ steps.build-nodejs.outputs.nodeVersion }}
     steps:
@@ -147,7 +147,7 @@ jobs:
 
   test-nodejs:
     name: test nodejs
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     needs:
       - build-nodejs
     steps:
@@ -168,7 +168,7 @@ jobs:
 
   test-npm:
     name: test npm
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     needs:
       - build-nodejs
     steps:
@@ -239,7 +239,7 @@ jobs:
 
   generate-matrix:
     name: generate matrix
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     outputs:
       matrix: ${{ steps.generate-matrix.outputs.matrix }}
     steps:
@@ -351,7 +351,7 @@ jobs:
 
   citgm:
     name: citgm - ${{ matrix.package }}@${{ matrix.version }} ${{ matrix.flaky && '(flaky)' || '' }} ${{ matrix.knownFailure && '(known failure)' || '' }}
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     needs:
       - build-nodejs
       - generate-matrix
diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index d16202c1c0745..3d2a5f15a99b6 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -17,7 +17,7 @@ jobs:
   commitlint:
     name: Lint Commits
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ee0e7f5bd9275..d45a64c9a34d4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -25,7 +25,7 @@ jobs:
       check-id: ${{ steps.create-check.outputs.check-id }}
     name: Release
     if: github.repository_owner == 'npm'
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
@@ -101,7 +101,7 @@ jobs:
       check-id: ${{ steps.create-check.outputs.check-id }}
     name: Update - Release
     if: github.repository_owner == 'npm' && needs.release.outputs.pr
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
@@ -177,7 +177,7 @@ jobs:
     needs: [ release, update, ci ]
     name: Post CI - Release
     if: github.repository_owner == 'npm' && needs.release.outputs.pr && always()
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
@@ -207,7 +207,7 @@ jobs:
       comment-id: ${{ steps.create-comment.outputs.comment-id }}
     name: Post Release - Release
     if: github.repository_owner == 'npm' && needs.release.outputs.releases
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash
@@ -249,7 +249,7 @@ jobs:
     needs: [ release, release-integration, post-release ]
     name: Post Release Integration - Release
     if: github.repository_owner == 'npm' && needs.release.outputs.releases && always()
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     defaults:
       run:
         shell: bash