diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..1d3aea1
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,25 @@
+cmake_minimum_required(VERSION 3.16)
+project(sse_cmake_exercise)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Boost REQUIRED COMPONENTS filesystem system)
+find_package(deal.II REQUIRED)
+find_package(yaml-cpp REQUIRED)
+
+set(SOURCE_FILES
+    fem/fem.cpp
+    flatset/flatset.cpp
+    filesystem/filesystem.cpp
+    yamlParser/yamlParser.cpp
+)
+
+add_executable(${PROJECT_NAME} main.cpp ${SOURCE_FILES})
+
+target_link_libraries(${PROJECT_NAME}
+    ${Boost_LIBRARIES}
+    yaml-cpp
+)
+
+DEAL_II_SETUP_TARGET(${PROJECT_NAME})
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..c7aa6bc
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,24 @@
+FROM ubuntu:24.04
+RUN sed -i 's|http://ports.ubuntu.com/ubuntu-ports|http://mirrors.edge.kernel.org/ubuntu|g' /etc/apt/sources.list
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && apt-get install -y \
+    build-essential cmake git wget unzip \
+    libdeal.ii-dev libboost-all-dev libopenmpi-dev
+
+WORKDIR /tmp
+RUN wget https://github.com/jbeder/yaml-cpp/archive/refs/tags/yaml-cpp-0.6.3.zip && \
+    unzip yaml-cpp-0.6.3.zip && \
+    cd yaml-cpp-yaml-cpp-0.6.3 && \
+    mkdir build && cd build && \
+    cmake .. -DCMAKE_BUILD_TYPE=Release && \
+    make -j$(nproc) && make install
+
+    
+ENV LD_LIBRARY_PATH=/usr/local/lib
+
+
+WORKDIR /cmake-exercise
+COPY . /cmake-exercise
+
+CMD ["/bin/bash"]
diff --git a/build_and_run.sh b/build_and_run.sh
old mode 100755
new mode 100644
index 60c4293..b01702e
--- a/build_and_run.sh
+++ b/build_and_run.sh
@@ -1,7 +1,11 @@
-#!/usr/bin/env bash
+#!/bin/bash
+set -e
 
+rm -rf build
 mkdir build
 cd build
-cmake -DCMAKE_BUILD_TYPE=Debug ..
-make
-./main ../yamlParser/config.yml
+
+cmake -DCMAKE_BUILD_TYPE=Release ..
+make -j
+
+./sse_cmake_exercise ../yamlParser/config.yml
diff --git a/main.cpp b/main.cpp
index 7588360..ba913dc 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,39 +1,39 @@
-//#include "fem/fem.hpp"
-//#include "flatset/flatset.hpp"
-//#include "filesystem/filesystem.hpp"
-//#include "yamlParser/yamlParser.hpp"
+#include "fem/fem.hpp"
+#include "flatset/flatset.hpp"
+#include "filesystem/filesystem.hpp"
+#include "yamlParser/yamlParser.hpp"
 #include <iostream>
 
 int main(int argc, char *argv[])
 {
   std::cout << "Let's fight with CMake, Docker, and some dependencies!" << std::endl << std::endl;
 
-  //std::cout << "Solve Poisson problem with FEM using deal.II" << std::endl;
-  //Fem fem;
-  //fem.run();
-  //std::cout << std::endl;
+  std::cout << "Solve Poisson problem with FEM using deal.II" << std::endl;
+  Fem fem;
+  fem.run();
+  std::cout << std::endl;
 
-  //std::cout << "Modify a flat set using boost container" << std::endl;
-  //modifyAndPrintSets();
-  //std::cout << std::endl;
+  std::cout << "Modify a flat set using boost container" << std::endl;
+  modifyAndPrintSets();
+  std::cout << std::endl;
 
-  //std::cout << "Inspect the current directory using boost filesystem" << std::endl;
-  //inspectDirectory();
-  //std::cout << std::endl;
+  std::cout << "Inspect the current directory using boost filesystem" << std::endl;
+  inspectDirectory();
+  std::cout << std::endl;
 
   
-  //if ( argc == 2 )
-  //{
-  //  const std::string yamlFile( argv[1] );
-  //  std::cout << "Parse some yaml file with yaml-cpp" << std::endl;
-  //  std::cout << "  " << yamlFile << std::endl;
-  //  parseConfig( yamlFile );
-  //}
-  //else
-  //{
-  //  std::cout << "To parse a yaml file please specify file on command line" << std::endl;
-  //  std::cout << "  ./main YAMLFILE" << std::endl;
-  //}
+  if ( argc == 2 )
+  {
+   const std::string yamlFile( argv[1] );
+   std::cout << "Parse some yaml file with yaml-cpp" << std::endl;
+   std::cout << "  " << yamlFile << std::endl;
+   parseConfig( yamlFile );
+  }
+  else
+  {
+   std::cout << "To parse a yaml file please specify file on command line" << std::endl;
+   std::cout << "  ./main YAMLFILE" << std::endl;
+  }
 
   return 0;
 }