diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b2a4b10e..0e9c16d2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,6 @@ jobs:
       fail-fast: false
       max-parallel: 20
       matrix:
-        branch: [v1.4.6]
         target:
           # Unit tests
           - os: linux
@@ -35,7 +34,7 @@ jobs:
           - target:
               os: windows
             builder: windows-2019
-    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }} (${{ matrix.branch }})'
+    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }}'
     runs-on: ${{ matrix.builder }}
     steps:
       - name: Checkout nim-dagger
@@ -93,6 +92,25 @@ jobs:
           EOF
           chmod 755 external/bin/gcc external/bin/g++
           echo '${{ github.workspace }}/external/bin' >> $GITHUB_PATH
+          NIMFLAGS="-d:LeopardCmakeFlags='-DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS=-m32 -DCMAKE_CXX_FLAGS=-m32'"
+          quote () {
+            local quoted=${1//\'/\'\\\'\'};
+            printf "'%s'" "$quoted"
+          }
+          echo "NIMFLAGS=$(quote "${NIMFLAGS}")" >> $GITHUB_ENV
+
+      - name: Install build dependencies (macOS)
+        if: runner.os == 'macOS'
+        run: |
+          brew install libomp
+          echo "$(brew --prefix)/opt/llvm/bin" >> $GITHUB_PATH
+          echo "LDFLAGS=-L$(brew --prefix)/opt/libomp/lib -L$(brew --prefix)/opt/llvm/lib -Wl,-rpath,$(brew --prefix)/opt/llvm/lib" >> $GITHUB_ENV
+          NIMFLAGS="-d:LeopardCmakeFlags='-DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=$(brew --prefix)/opt/llvm/bin/clang -DCMAKE_CXX_COMPILER=$(brew --prefix)/opt/llvm/bin/clang++' -d:LeopardExtraCompilerlags='-fopenmp' -d:LeopardExtraLinkerFlags='-fopenmp -L$(brew --prefix)/opt/libomp/lib'"
+          quote () {
+            local quoted=${1//\'/\'\\\'\'};
+            printf "'%s'" "$quoted"
+          }
+          echo "NIMFLAGS=$(quote "${NIMFLAGS}")" >> $GITHUB_ENV
 
       - name: Restore MinGW-W64 (Windows) from cache
         if: runner.os == 'Windows'
@@ -186,3 +204,12 @@ jobs:
         working-directory: nim-dagger
         run: |
           make testAll
+          if [[ ${{ runner.os }} = macOS ]]; then
+            echo
+            echo otool -L build/testDagger
+            otool -L build/testDagger
+          else
+            echo
+            echo ldd build/testDagger
+            ldd build/testDagger
+          fi
diff --git a/.gitmodules b/.gitmodules
index 8f312a04..a4d16568 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -175,3 +175,6 @@
 	url = https://github.com/status-im/nim-taskpools.git
 	ignore = untracked
 	branch = master
+[submodule "vendor/nim-leopard"]
+	path = vendor/nim-leopard
+	url = https://github.com/status-im/nim-leopard.git
diff --git a/config.nims b/config.nims
index dfcb1f7a..d7ce9358 100644
--- a/config.nims
+++ b/config.nims
@@ -1,7 +1,9 @@
+import std/os
+
 if defined(release):
-  switch("nimcache", "nimcache/release/$projectName")
+  switch("nimcache", joinPath(currentSourcePath.parentDir, "nimcache/release/$projectName"))
 else:
-  switch("nimcache", "nimcache/debug/$projectName")
+  switch("nimcache", joinPath(currentSourcePath.parentDir, "nimcache/debug/$projectName"))
 
 if defined(windows):
   # disable timestamps in Windows PE headers - https://wiki.debian.org/ReproducibleBuilds/TimestampsInPEBinaries
diff --git a/vendor/nim-leopard b/vendor/nim-leopard
new file mode 160000
index 00000000..41cd86df
--- /dev/null
+++ b/vendor/nim-leopard
@@ -0,0 +1 @@
+Subproject commit 41cd86df5bfa67afe7d3660e8ab0878133c8600e