diff --git a/.github/workflows/build-liquid.yaml b/.github/workflows/build-liquid.yaml
index bcb2849..3fc25e5 100644
--- a/.github/workflows/build-liquid.yaml
+++ b/.github/workflows/build-liquid.yaml
@@ -16,21 +16,17 @@ on:
       - "**/README.md"
   workflow_dispatch:
 
+env:
+  CABAL_DIR: '/cabal-dir'  # due to container; see top-level Dockerfile
+
 jobs:
   main:
     runs-on: ubuntu-latest
+    container: ghcr.io/ulysses4ever/lh-array-sort
     steps:
 
       - uses: actions/checkout@v4
 
-      - name: Setup Z3
-        uses: cda-tum/setup-z3@v1
-
-      - uses: haskell-actions/setup@v2
-        with:
-          ghc-version: 9.10.1
-          cabal-version: 3.14
-
       #  See the following link for a breakdown of the following step
       #  https://github.com/haskell/actions/issues/7#issuecomment-745697160
       - uses: actions/cache@v4
@@ -43,4 +39,5 @@ jobs:
           restore-keys: ${{ runner.os }}-${{ matrix.ghc }}-
 
       - name: Build in liquid mode
-        run: cabal build lh-array-sort
+        run: |
+          cabal build lh-array-sort
diff --git a/.github/workflows/build-test-linear.yaml b/.github/workflows/build-test-linear.yaml
index a404197..e785d3d 100644
--- a/.github/workflows/build-test-linear.yaml
+++ b/.github/workflows/build-test-linear.yaml
@@ -16,21 +16,17 @@ on:
       - "**/README.md"
   workflow_dispatch:
 
+env:
+  CABAL_DIR: '/cabal-dir'
+
 jobs:
   test-mutable-arrays:
     runs-on: ubuntu-latest
+    container: ghcr.io/ulysses4ever/lh-array-sort
     steps:
 
       - uses: actions/checkout@v4
 
-      - name: Setup Z3
-        uses: cda-tum/setup-z3@v1
-
-      - uses: haskell-actions/setup@v2
-        with:
-          ghc-version: 9.10.1
-          cabal-version: 3.14
-
       #  See the following link for a breakdown of the following step
       #  https://github.com/haskell/actions/issues/7#issuecomment-745697160
       - uses: actions/cache@v4
@@ -54,18 +50,11 @@ jobs:
 
   test-prim-mutable-arrays:
     runs-on: ubuntu-latest
+    container: ghcr.io/ulysses4ever/lh-array-sort
     steps:
 
       - uses: actions/checkout@v4
 
-      - name: Setup Z3
-        uses: cda-tum/setup-z3@v1
-
-      - uses: haskell-actions/setup@v2
-        with:
-          ghc-version: 9.10.1
-          cabal-version: 3.14
-
       - uses: actions/cache@v4
         with:
           path: |
@@ -86,18 +75,11 @@ jobs:
 
   test-pure-arrays:
     runs-on: ubuntu-latest
+    container: ghcr.io/ulysses4ever/lh-array-sort
     steps:
 
       - uses: actions/checkout@v4
 
-      - name: Setup Z3
-        uses: cda-tum/setup-z3@v1
-
-      - uses: haskell-actions/setup@v2
-        with:
-          ghc-version: 9.10.1
-          cabal-version: 3.14
-
       - uses: actions/cache@v4
         with:
           path: |
@@ -119,18 +101,11 @@ jobs:
 
   run-benchrunner:
     runs-on: ubuntu-latest
+    container: ghcr.io/ulysses4ever/lh-array-sort
     steps:
 
       - uses: actions/checkout@v4
 
-      - name: Setup Z3
-        uses: cda-tum/setup-z3@v1
-
-      - uses: haskell-actions/setup@v2
-        with:
-          ghc-version: 9.10.1
-          cabal-version: 3.14
-
       - uses: actions/cache@v4
         with:
           path: |
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..d6ede4d
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,18 @@
+FROM benz0li/ghc-musl:9.10.1
+
+RUN apk upgrade --no-cache \
+ && apk add --no-cache \
+      z3 git
+
+RUN  mkdir cabal-dir \
+  && export CABAL_DIR=/cabal-dir \
+  && cabal update \
+  && git clone https://github.com/michaelborkowski/lh-array-sort-new.git app \
+  && cd app      \
+  && cabal configure --constraint="lh-array-sort -liquid-checks +prim-mutable-arrays" --enable-tests \
+  && cabal build all \
+  && cabal test      \
+  && cd ..       \
+  && rm -rf /app
+
+CMD ["bash"]