diff --git a/.github/workflows/linux-precompile-gnu.yml b/.github/workflows/linux-precompile-gnu.yml
index 41605a6b..066456b9 100644
--- a/.github/workflows/linux-precompile-gnu.yml
+++ b/.github/workflows/linux-precompile-gnu.yml
@@ -110,7 +110,7 @@ jobs:
         id: cache-mix-compile_opencv
         uses: actions/cache@v3
         with:
-          key: precompile-opencv-${{ env.OPENCV_VER }}-${{ matrix.pair.arch }}-${{ hashFiles('cc_toolchain/*linux-gnu.cmake') }}-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
+          key: precompiled-opencv-${{ env.OPENCV_VER }}-${{ matrix.pair.arch }}-${{ hashFiles('cc_toolchain/*linux-gnu.cmake') }}-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
           path: |
             ./_build/${{ env.MIX_ENV }}/lib/evision
             ./c_src/headers.txt
diff --git a/.github/workflows/linux-precompile-musl.yml b/.github/workflows/linux-precompile-musl.yml
index f86da74e..8b84c705 100644
--- a/.github/workflows/linux-precompile-musl.yml
+++ b/.github/workflows/linux-precompile-musl.yml
@@ -73,7 +73,7 @@ jobs:
         id: cache-mix-compile_opencv
         uses: actions/cache@v3
         with:
-          key: precompile-opencv-${{ env.OPENCV_VER }}-${{ runner.os }}-x86_64-linux-musl-${{ hashFiles('cc_toolchain/**') }}-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
+          key: precompiled-opencv-${{ env.OPENCV_VER }}-${{ runner.os }}-x86_64-linux-musl-${{ hashFiles('cc_toolchain/**') }}-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
           path: |
             ./_build/${{ env.MIX_ENV }}/lib/evision
             ./c_src/headers.txt
@@ -231,7 +231,7 @@ jobs:
         id: cache-mix-compile_opencv
         uses: actions/cache@v3
         with:
-          key: precompile-opencv-${{ env.OPENCV_VER }}-${{ matrix.arch }}-${{ hashFiles('cc_toolchain/*linux-musl.cmake') }}-${{ hashFiles('cc_toolchain/zig.toolchain.cmake') }}-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
+          key: precompiled-opencv-${{ env.OPENCV_VER }}-${{ matrix.arch }}-${{ hashFiles('cc_toolchain/*linux-musl.cmake') }}-${{ hashFiles('cc_toolchain/zig.toolchain.cmake') }}-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
           path: |
             ./_build/${{ env.MIX_ENV }}/lib/evision
             ./c_src/headers.txt
diff --git a/.github/workflows/linux-x86_64.yml b/.github/workflows/linux-x86_64.yml
index bb61cecd..e3f38769 100644
--- a/.github/workflows/linux-x86_64.yml
+++ b/.github/workflows/linux-x86_64.yml
@@ -202,7 +202,7 @@ jobs:
         id: cache-mix-compile_opencv
         uses: actions/cache@v3
         with:
-          key: compile-opencv-${{ env.OPENCV_VER }}-x86_64-linux-gnu-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
+          key: compiled-opencv-${{ env.OPENCV_VER }}-x86_64-linux-gnu-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
           path: |
             ./_build/${{ env.MIX_ENV }}/lib/evision
             ./c_src/headers.txt
diff --git a/.github/workflows/macos-precompile.yml b/.github/workflows/macos-precompile.yml
index f41ce56d..d6764779 100644
--- a/.github/workflows/macos-precompile.yml
+++ b/.github/workflows/macos-precompile.yml
@@ -69,7 +69,7 @@ jobs:
         id: cache-mix-compile_opencv
         uses: actions/cache@v3
         with:
-          key: precompile-opencv-${{ env.OPENCV_VER }}-${{ matrix.pair.arch }}-apple-darwin-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
+          key: precompiled-opencv-${{ env.OPENCV_VER }}-${{ matrix.pair.arch }}-apple-darwin-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
           path: |
             ./_build/${{ env.MIX_ENV }}/lib/evision
             ./c_src/headers.txt
diff --git a/.github/workflows/macos-x86_64.yml b/.github/workflows/macos-x86_64.yml
index 0aef1255..30401c6b 100644
--- a/.github/workflows/macos-x86_64.yml
+++ b/.github/workflows/macos-x86_64.yml
@@ -89,7 +89,7 @@ jobs:
         id: cache-mix-compile_opencv
         uses: actions/cache@v3
         with:
-          key: compile-with-ffmpeg-opencv-macos-12-noopt-${{ runner.os }}-${{ env.OPENCV_VER }}-x86_64-apple-darwin-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
+          key: compiled-with-ffmpeg-opencv-${{ env.OPENCV_VER }}-x86_64-apple-darwin-${{ hashFiles('Makefile') }}-${{ hashFiles('py_src/*.py') }}
           path: |
             ./_build/${{ env.MIX_ENV }}/lib/evision
             ./c_src/headers.txt
@@ -129,14 +129,3 @@ jobs:
           # export BEAM_SMP="$(find "${ERL_BASE}" -name beam.smp)"
           # codesign -s - -f --entitlements tmp.entitlements "${BEAM_SMP}"
           find ./test -name '*_test.exs' -exec bash -c "echo {} && mix test --include require_downloading --include require_ffmpeg {}" \;
-      
-      - name: Mix Test with winograd
-        run: |
-          export ENABLE_WINOGRAD=yes
-          mix test --include require_downloading --include require_ffmpeg test/dnn_detection_model_test.exs || true
-          mix test --include require_downloading --include require_ffmpeg test/dnn_detection_test.exs || true
-          mix test --include require_downloading --include require_ffmpeg test/dnn_text_detection_model_db_test.exs || true
-          mix test --include require_downloading --include require_ffmpeg test/dnn_text_detection_model_east_test.exs || true
-      
-      # - name: Setup tmate session
-      #   uses: mxschmitt/action-tmate@v3
diff --git a/.github/workflows/windows-x86_64.yml b/.github/workflows/windows-x86_64.yml
index d8b0729d..fb6cb2d3 100644
--- a/.github/workflows/windows-x86_64.yml
+++ b/.github/workflows/windows-x86_64.yml
@@ -96,7 +96,7 @@ jobs:
         id: cache-mix-compile
         uses: actions/cache@v3
         with:
-          key: compile-opencv-${{ env.OPENCV_VER }}-x86_64-windows-msvc-${{ hashFiles('Makefile.win') }}-${{ hashFiles('py_src/*.py') }}
+          key: compiled-opencv-${{ env.OPENCV_VER }}-x86_64-windows-msvc-${{ hashFiles('Makefile.win') }}-${{ hashFiles('py_src/*.py') }}
           path: |
             ./_build/${{ env.MIX_ENV }}/lib/evision
             ./c_src/headers.txt
diff --git a/c_src/erlcompat.hpp b/c_src/erlcompat.hpp
index 4ace8713..f52d9ae3 100644
--- a/c_src/erlcompat.hpp
+++ b/c_src/erlcompat.hpp
@@ -122,12 +122,12 @@ ERL_NIF_TERM evision_from(ErlNifEnv *env, const TYPE& src)
         evision_res<STORAGE> * VAR;                                                                   \
         VAR = (decltype(VAR))enif_alloc_resource(evision_res<STORAGE>::type,                          \
                                 sizeof(evision_res<STORAGE>));                                        \
-        if (!VAR) return evision::nif::error(env, "no memory");                                       \
+        if (!VAR) return evision::nif::error(env, "out of memory");                                   \
         new (&(VAR->val)) STORAGE(r);                                                                 \
         ERL_NIF_TERM ret = enif_make_resource(env, VAR);                                              \
         enif_release_resource(VAR);                                                                   \
         bool success;                                                                                 \
-        ERL_NIF_TERM map = evision_from_as_map(env, r, ret, #MODULE_NAME, success);                   \
+        ERL_NIF_TERM map = evision_from_as_map(env, r, ret, "Elixir.Evision." #MODULE_NAME, success); \
         return map;                                                                                   \
     }                                                                                                 \
     static void destruct_##NAME(ErlNifEnv *env, void *args)                                           \