diff --git a/.github/workflows/hlint-from-scratch.yml b/.github/workflows/hlint-from-scratch.yml
index ade04f7..b4b17fe 100644
--- a/.github/workflows/hlint-from-scratch.yml
+++ b/.github/workflows/hlint-from-scratch.yml
@@ -10,12 +10,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu, macos, windows]
+        os: [ubuntu, macos]
     steps:
       - uses: actions/checkout@v4
       - run: stack upgrade
       - run: brew install automake
         if: matrix.os == 'macos'
+      - run: cabal update
+      - run: cabal install apply-refact
+        if: matrix.os == 'ubuntu'
       - run: |-
           echo "GHCLIB_AZURE='1'" >> $GITHUB_ENV
           echo "repo_dir=$(mktemp -d)" >> $GITHUB_ENV
diff --git a/hlint-from-scratch.sh b/hlint-from-scratch.sh
index 3883447..5a36592 100755
--- a/hlint-from-scratch.sh
+++ b/hlint-from-scratch.sh
@@ -236,7 +236,7 @@ else
 fi
 sha_ghc_lib_parser=$(shasum -a 256 "$repo_dir"/ghc-lib/ghc-lib-parser-"$version".tar.gz | awk '{ print $1 }')
 
-# temp disable while i focus on minimal set of github actions
+# temp disabled while i focus on minimal set of github actions
 if false; then
   if [ -z "$GHC_FLAVOR" ]; then
       # If the above worked out, update CI.hs.
@@ -400,17 +400,34 @@ if ! [ "$no_builds" == --no-builds ]; then
   # Again, wrong to pass $resolver_flag here.
 
   # Build hlint.
-  eval "C_INCLUDE_PATH=$(xcrun --show-sdk-path)/usr/include/ffi" "stack" "$stack_yaml_flag" "build"
+  if [ $uname == 'Darwin' ]; then
+    eval "C_INCLUDE_PATH=$(xcrun --show-sdk-path)/usr/include/ffi" "stack" "$stack_yaml_flag" "build"
+  else
+    eval "stack" "$stack_yaml_flag" "build"
+  fi
 
   # Run its tests.
-  eval "C_INCLUDE_PATH=$(xcrun --show-sdk-path)/usr/include/ffi" "stack" "$stack_yaml_flag" "run" "--" "--test"
+  if [ $uname == 'Darwin' ]; then
+    eval "C_INCLUDE_PATH=$(xcrun --show-sdk-path)/usr/include/ffi" "stack" "$stack_yaml_flag" "run" "--" "--test"
+  else
+    eval "stack" "$stack_yaml_flag" "run" "--" "--test"
+  fi
 
   # Test there are no changes to 'hints.md'.
-  eval "C_INCLUDE_PATH=$(xcrun --show-sdk-path)/usr/include/ffi" "stack" "$stack_yaml_flag" "run" "--" "hlint" "--generate-summary"
+  if [ $uname == 'Darwin' ]; then
+    eval "C_INCLUDE_PATH=$(xcrun --show-sdk-path)/usr/include/ffi" "stack" "$stack_yaml_flag" "run" "--" "hlint" "--generate-summary"
+  else
+    eval "stack" "$stack_yaml_flag" "run" "--" "hlint" "--generate-summary"
+  fi
+
   git diff --exit-code hints.md
 
   # Run it on its own source.
-  eval "C_INCLUDE_PATH=$(xcrun --show-sdk-path)/usr/include/ffi" "stack" "$stack_yaml_flag" "run" "--" "src"
+  if [ $uname == 'Darwin' ]; then
+    eval "C_INCLUDE_PATH=$(xcrun --show-sdk-path)/usr/include/ffi" "stack" "$stack_yaml_flag" "run" "--" "src"
+  else
+    eval "stack" "$stack_yaml_flag" "run" "--" "src"
+  fi
 fi
 
 # --