diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 21119a7..40f5cbf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,23 +1,16 @@
 name: CI
 on: [ push, pull_request, workflow_dispatch ]
 jobs:
-  lint:
-    runs-on: ubuntu-20.04
-    steps:
-      - uses: actions/checkout@v3
-      - uses: psf/black@stable
   test:
     strategy:
       matrix:
         os: [
+          macos-12,
           macos-13,
           macos-14,
         ]
     runs-on: ${{ matrix.os }}
     steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Setup Python
-        uses: actions/setup-python@v3
-      - name: Create jail
-        run: sudo python -m macosjail jail
+      - run: mount
+      - run: ls /System/Library/dyld/
+      - run: ls /System/Volumes/Preboot/Cryptexes/OS/System/Library/dyld/