diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f6c32e7..d5642b8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ on:
 jobs:
   php:
     name: PHP Tests & Lint
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, Linux, X64]
 
     services:
       mariadb:
@@ -30,12 +30,15 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: '8.4'
-          extensions: pdo, pdo_mysql, mbstring, bcmath, gd, opcache
-          coverage: none
+      - name: Setup PHP 8.4
+        run: |
+          mkdir -p "$RUNNER_TEMP/phpbin"
+          ln -sf /usr/bin/php8.4 "$RUNNER_TEMP/phpbin/php"
+          curl -fsSL https://getcomposer.org/download/latest-stable/composer.phar -o "$RUNNER_TEMP/phpbin/composer.phar"
+          printf '#!/usr/bin/env bash\nexec "%s/php" "%s/composer.phar" "$@"\n' "$RUNNER_TEMP/phpbin" "$RUNNER_TEMP/phpbin" > "$RUNNER_TEMP/phpbin/composer"
+          chmod +x "$RUNNER_TEMP/phpbin/composer"
+          echo "$RUNNER_TEMP/phpbin" >> "$GITHUB_PATH"
+          "$RUNNER_TEMP/phpbin/php" --version
 
       - name: Install Composer dependencies
         run: composer install --no-interaction --prefer-dist
@@ -67,7 +70,7 @@ jobs:
 
   frontend:
     name: Frontend Lint & Build
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, Linux, X64]
 
     steps:
       - uses: actions/checkout@v4
@@ -97,7 +100,7 @@ jobs:
 
   cli:
     name: CLI Tests & Build
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, Linux, X64]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index a89911e..a99c806 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -19,7 +19,7 @@ concurrency:
 jobs:
   build:
     name: Build Documentation
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, Linux, X64]
 
     steps:
       - uses: actions/checkout@v4
@@ -49,7 +49,7 @@ jobs:
   deploy:
     name: Deploy to GitHub Pages
     needs: build
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, Linux, X64]
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index 1451cd6..20c8ba8 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -8,7 +8,7 @@ on:
 jobs:
   publish:
     name: Publish @eooo/skillr
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, Linux, X64]
 
     permissions:
       contents: read