diff --git a/include/user/senseApiDesc.h b/include/user/senseApiDesc.h
index fcafa13..d57caff 100644
--- a/include/user/senseApiDesc.h
+++ b/include/user/senseApiDesc.h
@@ -6,14 +6,17 @@
 #include <user/senseDeviceSpec.h>
 #include <optional>
 #include <string>
+#include <memory>
 
 namespace smo {
 namespace sense_api {
 
 typedef int (sal_mlo_initializeIndFn)(void);
 typedef int (sal_mlo_finalizeIndFn)(void);
-typedef int (sal_mlo_attachDeviceReqFn)(const device::SenseDeviceSpec &desc);
-typedef int (sal_mlo_detachDeviceReqFn)(const device::SenseDeviceSpec &desc);
+typedef int (sal_mlo_attachDeviceReqFn)(
+    const std::shared_ptr<device::SenseDeviceSpec>& desc);
+typedef int (sal_mlo_detachDeviceReqFn)(
+    const std::shared_ptr<device::SenseDeviceSpec>& desc);
 
 /**
  * @brief Hooks provided by Salmanoff to senseApi libraries.
diff --git a/senseApis/xcbWindow/xcbWindow.cpp b/senseApis/xcbWindow/xcbWindow.cpp
index 70521c2..eaad492 100644
--- a/senseApis/xcbWindow/xcbWindow.cpp
+++ b/senseApis/xcbWindow/xcbWindow.cpp
@@ -54,7 +54,9 @@ std::string WindowSelector::stringify() const
     return os.str();
 }
 
-AttachedWindow::AttachedWindow(const smo::device::SenseDeviceSpec& spec)
+AttachedWindow::AttachedWindow(
+    const std::shared_ptr<smo::device::SenseDeviceSpec>& spec
+    )
     : deviceSpec(spec)
 {
     // Validate required function pointers are available
@@ -66,9 +68,9 @@ AttachedWindow::AttachedWindow(const smo::device::SenseDeviceSpec& spec)
             ": Required xcbXorg function pointers not available");
     }
 
-    windowSelector.display = getRequiredParamAsInt(spec, "display");
-    windowSelector.screen = getRequiredParamAsInt(spec, "screen");
-    parseWindowSelector(spec);
+    windowSelector.display = getRequiredParamAsInt(*spec, "display");
+    windowSelector.screen = getRequiredParamAsInt(*spec, "screen");
+    parseWindowSelector(*spec);
 
     // Get connection from libxcbXorg
     std::shared_ptr<xcb_xorg::XcbConnection> conn =
@@ -293,7 +295,9 @@ static int xcbWindow_finalizeInd(void)
     return 0;
 }
 
-static int xcbWindow_attachDeviceReq(const smo::device::SenseDeviceSpec& desc)
+static int xcbWindow_attachDeviceReq(
+    const std::shared_ptr<smo::device::SenseDeviceSpec>& desc
+    )
 {
     g_attachedWindows.emplace_back(
         std::make_unique<xcb_window::AttachedWindow>(desc));
@@ -304,7 +308,9 @@ static int xcbWindow_attachDeviceReq(const smo::device::SenseDeviceSpec& desc)
     return 0;
 }
 
-static int xcbWindow_detachDeviceReq(const smo::device::SenseDeviceSpec& spec)
+static int xcbWindow_detachDeviceReq(
+    const std::shared_ptr<smo::device::SenseDeviceSpec>& spec
+    )
 {
     auto it = std::find_if(g_attachedWindows.begin(), g_attachedWindows.end(),
         [&spec](const std::unique_ptr<xcb_window::AttachedWindow>& window) {
@@ -315,13 +321,13 @@ static int xcbWindow_detachDeviceReq(const smo::device::SenseDeviceSpec& spec)
     if (it == g_attachedWindows.end())
     {
         std::cerr << __func__ << ": Device not found for detachment:\n"
-            << spec.stringify() << "\n";
+            << spec->stringify() << "\n";
         return -1;
     }
 
     g_attachedWindows.erase(it);
     std::cout << __func__ << ": Detached X11 window device:\n"
-        << spec.stringify() << "\n";
+        << spec->stringify() << "\n";
     return 0;
 }
 
diff --git a/senseApis/xcbWindow/xcbWindow.h b/senseApis/xcbWindow/xcbWindow.h
index 5aab84a..e3f1bc8 100644
--- a/senseApis/xcbWindow/xcbWindow.h
+++ b/senseApis/xcbWindow/xcbWindow.h
@@ -30,10 +30,11 @@ struct WindowSelector
 class AttachedWindow
 {
 public:
-    AttachedWindow(const smo::device::SenseDeviceSpec& spec);
+    AttachedWindow(const std::shared_ptr<smo::device::SenseDeviceSpec>& spec);
     ~AttachedWindow();
 
-    const smo::device::SenseDeviceSpec& getDeviceSpec() const { return deviceSpec; }
+    const std::shared_ptr<smo::device::SenseDeviceSpec>& getDeviceSpec() const
+        { return deviceSpec; }
     const WindowSelector& getWindowSelector() const { return windowSelector; }
     const std::string& getActualWindowName() const { return actualWindowName; }
     void* getXcbConnection() const { return xcbConnectionShared.get(); }
@@ -41,10 +42,11 @@ public:
 
 private:
     void parseWindowSelector(const smo::device::SenseDeviceSpec& spec);
-    int getRequiredParamAsInt(const smo::device::SenseDeviceSpec& spec,
-                             const std::string& paramName);
+    int getRequiredParamAsInt(
+        const smo::device::SenseDeviceSpec& spec,
+        const std::string& paramName);
 
-    smo::device::SenseDeviceSpec deviceSpec;
+    std::shared_ptr<smo::device::SenseDeviceSpec> deviceSpec;
     WindowSelector windowSelector;
     std::string actualWindowName;
     std::shared_ptr<xcb_xorg::XcbConnection> xcbConnectionShared;
diff --git a/smocore/include/senseApis/senseApiManager.h b/smocore/include/senseApis/senseApiManager.h
index cf17fb4..8689327 100644
--- a/smocore/include/senseApis/senseApiManager.h
+++ b/smocore/include/senseApis/senseApiManager.h
@@ -38,8 +38,10 @@ public:
     void finalizeAllSenseApiLibs(void);
 
     void attachAllSenseDevicesFromSpecs(void);
-    void attachSenseDevice(const device::SenseDeviceSpec& spec);
-    void detachSenseDevice(const device::SenseDeviceSpec& spec);
+    void attachSenseDevice(
+        const std::shared_ptr<device::SenseDeviceSpec>& spec);
+    void detachSenseDevice(
+        const std::shared_ptr<device::SenseDeviceSpec>& spec);
     void detachAllSenseDevices(void);
 
     std::string stringifyLibs() const;
diff --git a/smocore/senseApis/senseApiManager.cpp b/smocore/senseApis/senseApiManager.cpp
index 056991e..dddaf1d 100644
--- a/smocore/senseApis/senseApiManager.cpp
+++ b/smocore/senseApis/senseApiManager.cpp
@@ -231,14 +231,16 @@ void SenseApiManager::finalizeAllSenseApiLibs(void)
     }
 }
 
-void SenseApiManager::attachSenseDevice(const device::SenseDeviceSpec& spec)
+void SenseApiManager::attachSenseDevice(
+    const std::shared_ptr<device::SenseDeviceSpec>& spec
+    )
 {
-    auto libOpt = getSenseApiLibByApiName(spec.api);
+    auto libOpt = getSenseApiLibByApiName(spec->api);
     if (!libOpt)
     {
         throw std::runtime_error(
             std::string(__func__) + ": No library found for API '"
-            + spec.api + "'");
+            + spec->api + "'");
     }
     auto& lib = libOpt.value().get();
     if (!lib.senseApiDesc.sal_mgmt_libOps.attachDeviceReq)
@@ -250,14 +252,16 @@ void SenseApiManager::attachSenseDevice(const device::SenseDeviceSpec& spec)
     lib.senseApiDesc.sal_mgmt_libOps.attachDeviceReq(spec);
 }
 
-void SenseApiManager::detachSenseDevice(const device::SenseDeviceSpec& spec)
+void SenseApiManager::detachSenseDevice(
+    const std::shared_ptr<device::SenseDeviceSpec>& spec
+    )
 {
-    auto libOpt = getSenseApiLibByApiName(spec.api);
+    auto libOpt = getSenseApiLibByApiName(spec->api);
     if (!libOpt)
     {
         throw std::runtime_error(
             std::string(__func__) + ": No library found for API '"
-            + spec.api + "'");
+            + spec->api + "'");
     }
     auto& lib = libOpt.value().get();
     if (!lib.senseApiDesc.sal_mgmt_libOps.detachDeviceReq)
@@ -272,14 +276,14 @@ void SenseApiManager::detachSenseDevice(const device::SenseDeviceSpec& spec)
 void SenseApiManager::attachAllSenseDevicesFromSpecs(void)
 {
     for (const auto& spec : device::DeviceManager::senseDeviceSpecs) {
-        attachSenseDevice(*spec);
+        attachSenseDevice(spec);
     }
 }
 
 void SenseApiManager::detachAllSenseDevices(void)
 {
     for (const auto& spec : device::DeviceManager::senseDeviceSpecs) {
-        detachSenseDevice(*spec);
+        detachSenseDevice(spec);
     }
 }