diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..3209bce
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,25 @@
+cmake_minimum_required(VERSION 3.12)
+
+project(cmake-exercise)
+
+find_package(Boost 1.36.0 REQUIRED COMPONENTS container filesystem)
+include_directories(${Boost_INCLUDE_DIRS})
+
+find_package(deal.II 9.5.0 REQUIRED
+  HINTS ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
+  )
+deal_ii_initialize_cached_variables() 
+
+find_package(yaml-cpp REQUIRED)
+
+add_executable(main 
+    main.cpp 
+    flatset/flatset.cpp 
+    filesystem/filesystem.cpp 
+    fem/fem.cpp
+    yamlParser/yamlParser.cpp
+)
+
+deal_ii_setup_target(main)
+
+target_link_libraries(main ${Boost_LIBRARIES} yaml-cpp)
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..66d8696
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,23 @@
+FROM ubuntu:24.04
+
+RUN apt update -y && \
+    apt install -y build-essential cmake unzip wget libboost-all-dev libdeal.ii-dev
+
+WORKDIR /cmake-exercise
+
+RUN wget https://github.com/jbeder/yaml-cpp/archive/refs/tags/yaml-cpp-0.6.3.tar.gz -O yaml-cpp.tar.gz && \
+    tar -xzf yaml-cpp.tar.gz && \
+    YAML_DIR=$(ls -d yaml-cpp-*) && \
+    cd $YAML_DIR && \
+    mkdir build && \
+    cd build && \
+    cmake .. && \
+    make && \
+    make install && \
+    cd /cmake-exercise && \
+    rm -rf yaml-cpp.tar.gz $YAML_DIR
+
+ENV LD_LIBRARY_PATH=/usr/local/lib
+
+WORKDIR /cmake-exercise
+    
\ No newline at end of file
diff --git a/README.md b/README.md
index 9e27f1f..08e9bea 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,21 @@
 # Let's Fight With CMake, Docker, and Some Dependencies
 
 Repository for the [CMake exercise](https://github.com/Simulation-Software-Engineering/Lecture-Material/blob/main/03_building_and_packaging/cmake_exercise.md).
+
+1. Build a docker image
+
+```bash
+docker buildx build --tag sse-cmake-image .
+```
+
+2. Create and run docker container in interactive mode
+
+```bash
+docker run -it --mount type=bind,src=.,dst=/cmake-exercise sse-cmake-image:latest
+```
+
+3. Once inside the container, you are inside the `cmake-exercise` directory, and can run 
+
+```bash
+./build_and_run.sh
+```
\ No newline at end of file
diff --git a/main.cpp b/main.cpp
index 7588360..08bc4a9 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;
 }