diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 2ab2d5e..3f6ae71 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -10,60 +10,60 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  # Stack
-  stack:
-    name: Stack / GHC ${{ matrix.ghc }}
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        ghc: ["8.6.5", "8.8.4", "8.10.7", "9.0.2", "9.2.5", "9.4.4"]
-      fail-fast: false
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          show-progress: false
-
-      - name: Setup Haskell
-        uses: haskell/actions/setup@v2
-        id: setup-haskell
-        with:
-          ghc-version: ${{ matrix.ghc }}
-          enable-stack: true
-
-      - name: General Setup
-        run: cp .ci/stack-${{ matrix.ghc }}.yaml stack.yaml
-
-      - name: Restore cached dependencies
-        uses: actions/cache/restore@v3
-        id: cache
-        with:
-          path: ${{ steps.setup-haskell.outputs.stack-root }}/snapshots
-          key:
-            ${{ runner.os }}-stack-${{ matrix.ghc }}-${{
-            hashFiles('prettyprinter-interp.cabal', 'stack.yaml') }}
-          restore-keys: ${{ runner.os }}-stack-${{ matrix.ghc }}-
-
-      - name: Install dependencies
-        run: stack build --only-dependencies
-
-      # Cache dependencies already at this point, so that we do not have to
-      # rebuild them should the subsequent steps fail.
-      - name: Save cached dependencies
-        uses: actions/cache/save@v3
-        with:
-          path: ${{ steps.setup-haskell.outputs.stack-root }}/snapshots
-          key: ${{ steps.cache.outputs.cache-primary-key }}
-
-      - name: Build
-        # Note: the --pedantic switch adds -Wall -Werror to the options passed
-        # to GHC. Options specified in stack.yaml (like -Wcompat) are still
-        # passed; it is cumulative. Future versions of Stack might add behavior
-        # to --pedantic.
-        run : stack build --pedantic
-
-      - name: Test
-        run : stack test
+#  # Stack
+#  stack:
+#    name: Stack / GHC ${{ matrix.ghc }}
+#    runs-on: ubuntu-latest
+#    strategy:
+#      matrix:
+#        ghc: ["8.6.5", "8.8.4", "8.10.7", "9.0.2", "9.2.5", "9.4.4"]
+#      fail-fast: false
+#    steps:
+#      - name: Checkout
+#        uses: actions/checkout@v4
+#        with:
+#          show-progress: false
+#
+#      - name: Setup Haskell
+#        uses: haskell/actions/setup@v2
+#        id: setup-haskell
+#        with:
+#          ghc-version: ${{ matrix.ghc }}
+#          enable-stack: true
+#
+#      - name: General Setup
+#        run: cp .ci/stack-${{ matrix.ghc }}.yaml stack.yaml
+#
+#      - name: Restore cached dependencies
+#        uses: actions/cache/restore@v3
+#        id: cache
+#        with:
+#          path: ${{ steps.setup-haskell.outputs.stack-root }}/snapshots
+#          key:
+#            ${{ runner.os }}-stack-${{ matrix.ghc }}-${{
+#            hashFiles('prettyprinter-interp.cabal', 'stack.yaml') }}
+#          restore-keys: ${{ runner.os }}-stack-${{ matrix.ghc }}-
+#
+#      - name: Install dependencies
+#        run: stack build --only-dependencies
+#
+#      # Cache dependencies already at this point, so that we do not have to
+#      # rebuild them should the subsequent steps fail.
+#      - name: Save cached dependencies
+#        uses: actions/cache/save@v3
+#        with:
+#          path: ${{ steps.setup-haskell.outputs.stack-root }}/snapshots
+#          key: ${{ steps.cache.outputs.cache-primary-key }}
+#
+#      - name: Build
+#        # Note: the --pedantic switch adds -Wall -Werror to the options passed
+#        # to GHC. Options specified in stack.yaml (like -Wcompat) are still
+#        # passed; it is cumulative. Future versions of Stack might add behavior
+#        # to --pedantic.
+#        run : stack build --pedantic
+#
+#      - name: Test
+#        run : stack test
 
   # Cabal
   cabal:
@@ -71,7 +71,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ghc: ["8.6.5", "8.8.4", "8.10.7", "9.0.2", "9.2.5", "9.4.4", "9.6.1"]
+#        ghc: ["8.6.5", "8.8.4", "8.10.7", "9.0.2", "9.2.5", "9.4.4", "9.6.1"]
+        ghc: ["9.0.2"]
       fail-fast: false
     steps:
       - name: Checkout
@@ -130,7 +131,7 @@ jobs:
     if: always()
     needs:
       - cabal
-      - stack
+      #- stack
     runs-on: ubuntu-latest
     steps:
       - name: Checkout