diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6e70259..04c9c61 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,6 +11,7 @@ add_subdirectory(smart_ptr)
 add_subdirectory(array)
 add_subdirectory(string)
 add_subdirectory(heap)
+add_subdirectory(rt_polymorphysm)
 
 if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
   add_subdirectory(threads) 
diff --git a/cmake/helper.cmake b/cmake/helper.cmake
index 3ffd1b1..a1275c7 100644
--- a/cmake/helper.cmake
+++ b/cmake/helper.cmake
@@ -26,4 +26,5 @@ macro(configure_target target_name source_file)
     target_compile_options(${target_name} PRIVATE -Os -fno-rtti -fno-exceptions)
     enable_map_file_for_target(${target_name})
     add_test(NAME ${target_name} COMMAND $<TARGET_FILE:${target_name}>)
+    print_size(${target_name})
 endmacro()
diff --git a/rt_polymorphysm/CMakeLists.txt b/rt_polymorphysm/CMakeLists.txt
new file mode 100644
index 0000000..79ae563
--- /dev/null
+++ b/rt_polymorphysm/CMakeLists.txt
@@ -0,0 +1 @@
+add_subdirectory(profile)
\ No newline at end of file
diff --git a/rt_polymorphysm/profile/CMakeLists.txt b/rt_polymorphysm/profile/CMakeLists.txt
new file mode 100644
index 0000000..88932ad
--- /dev/null
+++ b/rt_polymorphysm/profile/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_subdirectory(cptr)
+add_subdirectory(virtual)
\ No newline at end of file
diff --git a/rt_polymorphysm/profile/cptr/CMakeLists.txt b/rt_polymorphysm/profile/cptr/CMakeLists.txt
new file mode 100644
index 0000000..ee6a70c
--- /dev/null
+++ b/rt_polymorphysm/profile/cptr/CMakeLists.txt
@@ -0,0 +1,2 @@
+set(cptr-interface_SOURCES main.cpp)
+configure_target(cptr-interface ${cptr-interface_SOURCES})
diff --git a/rt_polymorphysm/profile/cptr/light_sensor.hpp b/rt_polymorphysm/profile/cptr/light_sensor.hpp
new file mode 100644
index 0000000..cb81905
--- /dev/null
+++ b/rt_polymorphysm/profile/cptr/light_sensor.hpp
@@ -0,0 +1,24 @@
+#ifndef LIGHT_SENSOR_HPP
+#define LIGHT_SENSOR_HPP
+
+#include <cstdio>
+#include <cstdint>
+
+struct LightSensor {
+    bool init(uint8_t mode) {
+        printf("[LightSensor] Init with mode: %d\n", mode);
+        return true;
+    }
+
+    bool read(float& value) {
+        value = 25.3f;  // Simulated light intensity
+        printf("[LightSensor] Read value: %.2f\n", value);
+        return true;
+    }
+
+    void shutdown() {
+        printf("[LightSensor] Shutdown\n");
+    }
+};
+
+#endif
diff --git a/rt_polymorphysm/profile/cptr/light_sensor_policy.hpp b/rt_polymorphysm/profile/cptr/light_sensor_policy.hpp
new file mode 100644
index 0000000..62907e7
--- /dev/null
+++ b/rt_polymorphysm/profile/cptr/light_sensor_policy.hpp
@@ -0,0 +1,9 @@
+#ifndef LIGHT_SENSOR_POLICY_HPP
+#define LIGHT_SENSOR_POLICY_HPP
+
+#include "light_sensor.hpp"
+#include "sensor_policy.hpp"
+
+using LightSensorPolicy = SensorPolicy<LightSensor>;
+
+#endif
diff --git a/rt_polymorphysm/profile/cptr/main.cpp b/rt_polymorphysm/profile/cptr/main.cpp
new file mode 100644
index 0000000..e7e874b
--- /dev/null
+++ b/rt_polymorphysm/profile/cptr/main.cpp
@@ -0,0 +1,38 @@
+#include "sensor_interface.hpp"
+#include "sensor_policy.hpp"
+#include "temp_sensor_policy.hpp"
+#include "light_sensor_policy.hpp"
+#include "temp_sensor.hpp"
+#include "light_sensor.hpp"
+
+int main() {
+    TempSensor ts;
+    auto temp_sensor = SensorT::create<TempSensor, TempSensorPolicy>(ts);
+
+    LightSensor ls;
+    auto light_sensor = SensorT::create<LightSensor, LightSensorPolicy>(ls);
+
+    SensorT &sensor = temp_sensor;
+    
+    sensor.init();
+
+    float temperature = 0;
+    if (sensor.read(temperature)) {
+        printf("Temperature: %.2f°C\n", temperature);
+    }
+
+    sensor.shutdown();
+
+    sensor = light_sensor;
+    
+    sensor.init();
+
+    float light = 0;
+    if (sensor.read(light)) {
+        printf("Light: %.2f\n", light);
+    }
+
+    sensor.shutdown();
+
+    return 0;
+}
diff --git a/rt_polymorphysm/profile/cptr/sensor_interface.hpp b/rt_polymorphysm/profile/cptr/sensor_interface.hpp
new file mode 100644
index 0000000..43c9d2a
--- /dev/null
+++ b/rt_polymorphysm/profile/cptr/sensor_interface.hpp
@@ -0,0 +1,45 @@
+#ifndef SENSOR_INTERFACE_HPP
+#define SENSOR_INTERFACE_HPP
+
+#include <cstdint>
+
+struct SensorT {
+    using InitFn = void (*)();
+    using ReadFn = bool (*)(float&);
+    using ShutdownFn = void (*)();
+
+    InitFn init;
+    ReadFn read;
+    ShutdownFn shutdown;
+
+    // Create from Impl + Policy adapter
+    template<typename Impl, typename Policy>
+    static SensorT create(Impl& impl) {
+        struct Adapter {
+            Impl& sensor;
+
+            explicit Adapter(Impl& sensor) : sensor(sensor) {}
+
+            void init() {
+                Policy::init(sensor);
+            }
+
+            bool read(float& out) {
+                return Policy::read(sensor, out);
+            }
+
+            void shutdown() {
+                Policy::shutdown(sensor);
+            }
+        };
+
+        static Adapter adapter(impl);
+        return SensorT{
+            []() { adapter.init(); },
+            [](float& out) { return adapter.read(out); },
+            []() { adapter.shutdown(); }
+        };
+    }
+};
+
+#endif // SENSOR_INTERFACE_HPP
diff --git a/rt_polymorphysm/profile/cptr/sensor_policy.hpp b/rt_polymorphysm/profile/cptr/sensor_policy.hpp
new file mode 100644
index 0000000..3e70efb
--- /dev/null
+++ b/rt_polymorphysm/profile/cptr/sensor_policy.hpp
@@ -0,0 +1,19 @@
+#ifndef SENSOR_POLICY_HPP
+#define SENSOR_POLICY_HPP
+
+template <typename Sensor>
+struct SensorPolicy {
+    static void init(Sensor& sensor) {
+        sensor.init(1); // example mode
+    }
+
+    static bool read(Sensor& sensor, float& out) {
+        return sensor.read(out);
+    }
+
+    static void shutdown(Sensor& sensor) {
+        sensor.shutdown();
+    }
+};
+
+#endif
diff --git a/rt_polymorphysm/profile/cptr/temp_sensor.hpp b/rt_polymorphysm/profile/cptr/temp_sensor.hpp
new file mode 100644
index 0000000..a865550
--- /dev/null
+++ b/rt_polymorphysm/profile/cptr/temp_sensor.hpp
@@ -0,0 +1,24 @@
+#ifndef TEMP_SENSOR_HPP
+#define TEMP_SENSOR_HPP
+
+#include <cstdio>
+#include <cstdint>
+
+struct TempSensor {
+    bool init(uint8_t mode) {
+        printf("[TempSensor] Init with mode: %d\n", mode);
+        return true;
+    }
+
+    bool read(float& value) {
+        value = 25.3f;  // Simulated temperature
+        printf("[TempSensor] Read value: %.2f\n", value);
+        return true;
+    }
+
+    void shutdown() {
+        printf("[TempSensor] Shutdown\n");
+    }
+};
+
+#endif
diff --git a/rt_polymorphysm/profile/cptr/temp_sensor_policy.hpp b/rt_polymorphysm/profile/cptr/temp_sensor_policy.hpp
new file mode 100644
index 0000000..208b750
--- /dev/null
+++ b/rt_polymorphysm/profile/cptr/temp_sensor_policy.hpp
@@ -0,0 +1,9 @@
+#ifndef TEMP_SENSOR_POLICY_HPP
+#define TEMP_SENSOR_POLICY_HPP
+
+#include "temp_sensor.hpp"
+#include "sensor_policy.hpp"
+
+using TempSensorPolicy = SensorPolicy<TempSensor>;
+
+#endif
diff --git a/rt_polymorphysm/profile/virtual/CMakeLists.txt b/rt_polymorphysm/profile/virtual/CMakeLists.txt
new file mode 100644
index 0000000..f264454
--- /dev/null
+++ b/rt_polymorphysm/profile/virtual/CMakeLists.txt
@@ -0,0 +1,2 @@
+set(cpp-interface_SOURCES main.cpp)
+configure_target(cpp-interface ${cpp-interface_SOURCES})
diff --git a/rt_polymorphysm/profile/virtual/light_sensor.hpp b/rt_polymorphysm/profile/virtual/light_sensor.hpp
new file mode 100644
index 0000000..90a1bc4
--- /dev/null
+++ b/rt_polymorphysm/profile/virtual/light_sensor.hpp
@@ -0,0 +1,28 @@
+#ifndef LIGHT_SENSOR_HPP
+#define LIGHT_SENSOR_HPP
+
+#include <cstdio>
+#include <cstdint>
+
+#include "sensor_interface.hpp"
+
+// Concrete light sensor class
+class LightSensor : public ISensor {
+    public:
+
+        void init(uint8_t mode) override {
+            printf("[LightSensor] Init with mode: %d\n", mode);
+        }
+    
+        bool read(float & value) override {
+            value = 350.0f;
+            printf("[TempSensor] Read value: %.2f\n", value);
+            return true;
+        }
+    
+        void shutdown() override {
+            printf("[LightSensor] Power Off\n");
+        }
+    };
+
+#endif
diff --git a/rt_polymorphysm/profile/virtual/main.cpp b/rt_polymorphysm/profile/virtual/main.cpp
new file mode 100644
index 0000000..0bef623
--- /dev/null
+++ b/rt_polymorphysm/profile/virtual/main.cpp
@@ -0,0 +1,33 @@
+
+#include "temp_sensor.hpp"
+#include "light_sensor.hpp"
+
+int main() {
+    TempSensor ts;
+
+    LightSensor ls;
+
+    ISensor &sensor = ts;
+    
+    sensor.init(0);
+
+    float temperature = 0;
+    if (sensor.read(temperature)) {
+        printf("Temperature: %.2f°C\n", temperature);
+    }
+
+    sensor.shutdown();
+
+    sensor = ls;
+    
+    sensor.init(0);
+
+    float light = 0;
+    if (sensor.read(light)) {
+        printf("Light: %.2f\n", light);
+    }
+
+    sensor.shutdown();
+
+    return 0;
+}
diff --git a/rt_polymorphysm/profile/virtual/sensor_interface.hpp b/rt_polymorphysm/profile/virtual/sensor_interface.hpp
new file mode 100644
index 0000000..80c25bf
--- /dev/null
+++ b/rt_polymorphysm/profile/virtual/sensor_interface.hpp
@@ -0,0 +1,15 @@
+#ifndef SENSOR_INTERFACE_VIRTUAL_HPP
+#define SENSOR_INTERFACE_VIRTUAL_HPP
+
+#include <cstdio>
+
+// Abstract base class for sensors
+class ISensor {
+public:
+    virtual ~ISensor() = default;
+    virtual void init(uint8_t mode) = 0;
+    virtual bool read(float & value) = 0;
+    virtual void shutdown() = 0;
+};
+
+#endif // SENSOR_INTERFACE_VIRTUAL_HPP
diff --git a/rt_polymorphysm/profile/virtual/temp_sensor.hpp b/rt_polymorphysm/profile/virtual/temp_sensor.hpp
new file mode 100644
index 0000000..61bada0
--- /dev/null
+++ b/rt_polymorphysm/profile/virtual/temp_sensor.hpp
@@ -0,0 +1,27 @@
+#ifndef TEMP_SENSOR_HPP
+#define TEMP_SENSOR_HPP
+
+#include <cstdio>
+#include <cstdint>
+
+#include "sensor_interface.hpp"
+
+// Concrete temperature sensor class
+class TempSensor : public ISensor {
+    public:
+        void init(uint8_t mode) override {
+            printf("[TempSensor] Init with mode: %d\n", mode);
+        }
+    
+        bool read(float & out) override {
+            out = 24.7f;
+            printf("[TempSensor] Read value: %.2f\n", out);
+            return true;
+        }
+    
+        void shutdown() override {
+            printf("[TempSensor] Shutdown\n");
+        }
+    };
+
+#endif