diff --git a/.github/workflows/npm_publish.yaml b/.github/workflows/npm_publish.yaml
index e7ae274..a2d388d 100644
--- a/.github/workflows/npm_publish.yaml
+++ b/.github/workflows/npm_publish.yaml
@@ -14,32 +14,9 @@ jobs:
 
     env:
       WORKING_DIR: ${{ github.workspace }}/wasm_bindings
-
-    strategy:
-      fail-fast: false
-      matrix:
-        layout:
-          [
-            "dex",
-            "dynamic",
-            "recursive",
-            "recursive_with_poseidon",
-            "small",
-            "starknet",
-            "starknet_with_keccak",
-          ]
-        hash: 
-          [
-            "keccak_160_lsb",
-            "keccak_248_lsb",
-            "blake2s_160_lsb",
-            "blake2s_248_lsb",
-          ]
-        stone: 
-          [
-            "stone5",
-            "stone6",
-          ]
+      LAYOUTS: "dex dynamic recursive recursive_with_poseidon small starknet starknet_with_keccak"
+      HASHERS: "keccak_160_lsb keccak_248_lsb blake2s_160_lsb blake2s_248_lsb"
+      STONES: "stone5 stone6"
 
     steps:
       - name: Checkout repository
@@ -80,13 +57,9 @@ jobs:
 
       - name: Build WASM packages
         run: |
-          LAYOUTS=(${{ matrix.layout }})
-          HASHERS=(${{ matrix.hash }})
-          STONES=(${{ matrix.stone }})
-
-          for layout in "${LAYOUTS[@]}"; do
-              for hasher in "${HASHERS[@]}"; do
-                  for stone in "${STONES[@]}"; do
+          for layout in $LAYOUTS; do
+              for hasher in $HASHERS; do
+                  for stone in $STONES; do
                       output_dir="src/pkg/swiftness_${layout}_${hasher}_${stone}"
                       features="${layout},${hasher},${stone}"
 
@@ -95,8 +68,8 @@ jobs:
                       wasm-pack build --out-dir "$output_dir" --target web --features "$features" --no-default-features
 
                       # Clean up unnecessary files
-                      rm "$output_dir/.gitignore"
-                      rm "$output_dir/README.md"
+                      rm -f "$output_dir/.gitignore"
+                      rm -f "$output_dir/README.md"
                   done
               done
           done