diff --git a/pkg/build.sh b/pkg/build.sh
index fe81235..da0ceaa 100755
--- a/pkg/build.sh
+++ b/pkg/build.sh
@@ -10,6 +10,11 @@ TARGET="release"
 VERSION=$(grep '^version' tiles/Cargo.toml | head -1 | awk -F'"' '{print $2}')
 OS=$(uname -s | tr '[:upper:]' '[:lower:]')
 ARCH=$(uname -m)
+case "${OS}" in
+  darwin) STACK_SPEC="server/stack/macos/venvstacks.toml" ;;
+  linux) STACK_SPEC="server/stack/linux/venvstacks.toml" ;;
+  *) echo "Unsupported OS for venvstack bundle: ${OS}" >&2; exit 1 ;;
+esac
 
 OUT_NAME="${BINARY_NAME}-v${VERSION}-${ARCH}-${OS}"
 
@@ -76,15 +81,15 @@ rm -rf "${SERVER_DIR}/stack_export_prod"
 
 echo "🔒 Locking the venvstack...."
 
-venvstacks lock server/stack/venvstacks.toml
+venvstacks lock "${STACK_SPEC}"
 
 echo "🛠️ Building the venvstack...."
 
-venvstacks build server/stack/venvstacks.toml
+venvstacks build "${STACK_SPEC}"
 
 echo "📦 Publishing the venvstack...."
 
-venvstacks publish --tag-outputs --output-dir ../stack_export_prod server/stack/venvstacks.toml
+venvstacks publish --tag-outputs --output-dir ../../stack_export_prod "${STACK_SPEC}"
 
 cp -r "${SERVER_DIR}" "${PKG_LIBS_PATH}"
 
diff --git a/pkg/scripts/postinstall b/pkg/scripts/postinstall
index 7c25563..f7c7f9a 100755
--- a/pkg/scripts/postinstall
+++ b/pkg/scripts/postinstall
@@ -13,5 +13,7 @@ done
 rm -f *.tar.xz
 
 ./cpython3.13/bin/python cpython3.13/postinstall.py
-./framework-mlx/bin/python framework-mlx/postinstall.py
+if [[ -x ./framework-mlx/bin/python ]]; then
+  ./framework-mlx/bin/python framework-mlx/postinstall.py
+fi
 ./app-server/bin/python app-server/postinstall.py
diff --git a/scripts/bundler.sh b/scripts/bundler.sh
index c57a23b..d68707a 100755
--- a/scripts/bundler.sh
+++ b/scripts/bundler.sh
@@ -15,6 +15,11 @@ TARGET="release"
 VERSION=$(grep '^version' tiles/Cargo.toml | head -1 | awk -F'"' '{print $2}')
 OS=$(uname -s | tr '[:upper:]' '[:lower:]')
 ARCH=$(uname -m)
+case "${OS}" in
+  darwin) STACK_SPEC="server/stack/macos/venvstacks.toml" ;;
+  linux) STACK_SPEC="server/stack/linux/venvstacks.toml" ;;
+  *) echo "Unsupported OS for venvstack bundle: ${OS}" >&2; exit 1 ;;
+esac
 
 # Name for final tar.gz 
 
@@ -74,15 +79,15 @@ rm -rf "${SERVER_DIR}/stack_export_prod"
 
 echo "🔒 Locking the venvstack...."
 
-venvstacks lock server/stack/venvstacks.toml
+venvstacks lock "${STACK_SPEC}"
 
 echo "🛠️ Building the venvstack...."
 
-venvstacks build server/stack/venvstacks.toml
+venvstacks build "${STACK_SPEC}"
 
 echo "📦 Publishing the venvstack...."
 
-venvstacks publish --tag-outputs --output-dir ../stack_export_prod server/stack/venvstacks.toml
+venvstacks publish --tag-outputs --output-dir ../../stack_export_prod "${STACK_SPEC}"
 
 cp -r "${SERVER_DIR}" "${DIST_DIR}/tmp/"
 
diff --git a/scripts/install.sh b/scripts/install.sh
index 02b32b0..af7d8e5 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -78,7 +78,9 @@ done
 rm -rf *.tar.xz
 
 cpython3.13/bin/python cpython3.13/postinstall.py
-framework-mlx/bin/python framework-mlx/postinstall.py
+if [[ -x framework-mlx/bin/python ]]; then
+  framework-mlx/bin/python framework-mlx/postinstall.py
+fi
 app-server/bin/python app-server/postinstall.py
 
 rm -rf "${TMPDIR}"
diff --git a/server/.gitignore b/server/.gitignore
index 74ee4e0..964d25f 100644
--- a/server/.gitignore
+++ b/server/.gitignore
@@ -3,5 +3,7 @@ __pycache__/
 .venv/
 backend/__pycache__
 stack/_build
+stack/*/_build
+stack/*/requirements
 stack/stack_export
 stack_export_prod
diff --git a/server/stack/linux/venvstacks.toml b/server/stack/linux/venvstacks.toml
new file mode 100644
index 0000000..0a470d7
--- /dev/null
+++ b/server/stack/linux/venvstacks.toml
@@ -0,0 +1,28 @@
+[[runtimes]]
+name = "cpython3.13"
+python_implementation = "cpython@3.13.11"
+requirements = []
+platforms = [
+    "linux_x86_64",
+]
+
+
+[[applications]]
+name = "server"
+launch_module = "../../main.py"
+runtime = "cpython3.13"
+requirements = [
+    "fastapi==0.119.0",
+    "uvicorn==0.38.0",
+    "openai-harmony==0.0.8",
+    "llama-cpp-python @ https://github.com/abetlen/llama-cpp-python/releases/download/v0.3.25-cu124/llama_cpp_python-0.3.25-py3-none-linux_x86_64.whl#sha256=d4651fe74e66275aa1f6f16027bc9113c91cc828c421c156151c3d392a27020d",
+    "nvidia-cuda-runtime-cu12",
+    "nvidia-cublas-cu12",
+    "openresponses-types",
+    "httpx==0.28.1",
+    ]
+
+[tool.uv]
+environments = [
+    "sys_platform == 'linux' and platform_machine == 'x86_64'",
+]
diff --git a/server/stack/macos/venvstacks.toml b/server/stack/macos/venvstacks.toml
new file mode 100644
index 0000000..f99f8fa
--- /dev/null
+++ b/server/stack/macos/venvstacks.toml
@@ -0,0 +1,33 @@
+[[runtimes]]
+name = "cpython3.13"
+python_implementation = "cpython@3.13.11"
+requirements = []
+platforms = [
+    "macosx_arm64",
+]
+
+
+[[frameworks]]
+name = "mlx"
+runtime = "cpython3.13"
+requirements = [
+    "mlx==0.31.1"
+]
+
+[[applications]]
+name = "server"
+launch_module = "../../main.py"
+frameworks = ["mlx"]
+requirements = [
+    "fastapi==0.119.0",
+    "uvicorn==0.38.0",
+    "mlx-lm==0.31.0",
+    "openai-harmony==0.0.8",
+    "openresponses-types",
+    "httpx==0.28.1",
+    ]
+
+[tool.uv]
+environments = [
+    "sys_platform == 'darwin' and platform_machine == 'arm64'",
+]