diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e94f2d..734e6cb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,11 @@ project(BillySheet LANGUAGES CXX C)
 find_package(OpenGL REQUIRED)
 find_package(GLEW REQUIRED)
 
+# see https://cmake.org/cmake/help/latest/module/FindBoost.html
+find_package(Boost REQUIRED COMPONENTS stacktrace_addr2line)
+
+include_directories(${Boost_INCLUDE_DIR})
+
 set(PRECOMPILE_HEADERS
 	include/gui/gui.hpp
 	include/gui/gui_data.hpp
@@ -143,9 +148,11 @@ set_target_properties(glfw PROPERTIES
 					  C_STANDARD_REQUIRED ON
 					  C_EXTENSIONS OFF
 					  INTERPROCEDURAL_OPTIMIZATION ON
-					  # UNITY_BUILD ON
+					   UNITY_BUILD ON
 					  )
 
+set_target_properties(spdlog PROPERTIES UNITY_BUILD ON)
+
 #target_precompile_headers(BillySheet PRIVATE ${PRECOMPILE_HEADERS})
 target_compile_definitions(BillySheet PRIVATE
 						   $<$<CONFIG:Debug>:_GLIBCXX_DEBUG>
@@ -162,4 +169,4 @@ target_link_options(BillySheet PRIVATE ${LINKER_OPTIONS})
 
 target_link_libraries(spdlog PRIVATE ${LINKER_FLAGS})
 target_link_libraries(glfw PRIVATE ${LINKER_FLAGS})
-target_link_libraries(BillySheet glfw spdlog OpenGL::OpenGL GLEW::GLEW nlohmann_json::nlohmann_json ${LINKER_FLAGS})
+target_link_libraries(BillySheet glfw spdlog OpenGL::OpenGL GLEW::GLEW nlohmann_json::nlohmann_json ${Boost_LIBRARIES} ${LINKER_FLAGS})
diff --git a/include/gui/menu/menu_data.hpp b/include/gui/menu/menu_data.hpp
index 230e50c..3cdce3d 100644
--- a/include/gui/menu/menu_data.hpp
+++ b/include/gui/menu/menu_data.hpp
@@ -5,20 +5,26 @@
 
 namespace fs = std::filesystem;
 
+class Controller;
+
 namespace character {
 	class CharacterSheet;
 }
 
 namespace gui::menu {
 	class MenuData final {
+	public:
+		static constexpr const char *const open_character_key{ "CharacterSheetOpen" };
+
+		static constexpr const char *const save_character_key{ "CharacterSheetSaveAs" };
 	private:
 		friend class Menu;
 
 		const character::CharacterSheet &character_sheet;
 
-		fs::path save_path{ "./" };
+		mutable fs::path save_path{ "./" };
 
-		std::string filename{ "character_sheet.json" };
+		mutable std::string filename{ "character_sheet.json" };
 
 		bool edit_mode{ true };
 	public:
@@ -29,6 +35,10 @@ namespace gui::menu {
 		~MenuData() noexcept = default;
 
 		[[nodiscard]] bool is_edit_mode() const { return edit_mode; }
+
+		void set_save_path(const fs::path &savePath) const { save_path = savePath; }
+
+		void set_filename(const std::string &fileName) const { filename = fileName; }
 	};
 }
 
diff --git a/src/controller.cpp b/src/controller.cpp
index 32344e4..0251e41 100644
--- a/src/controller.cpp
+++ b/src/controller.cpp
@@ -1,7 +1,29 @@
 #include "controller.hpp"
 #include "gui/menu/menu_data.hpp"
+#include "ImFileDialog.h"
+#include <spdlog/spdlog.h>
 
 void Controller::control() noexcept {
+	SPDLOG_DEBUG("Check \"open character\" task");
+	if (ifd::FileDialog::Instance().IsDone(gui::menu::MenuData::open_character_key)) {
+		SPDLOG_DEBUG("Task done");
+		if (ifd::FileDialog::Instance().HasResult()) {
+			SPDLOG_DEBUG("Has Result");
+			fs::path str = ifd::FileDialog::Instance().GetResult();
+			SPDLOG_DEBUG("path opening: {}", str.string());
+		}
+		ifd::FileDialog::Instance().Close();
+	}
+	SPDLOG_DEBUG("Check \"saving character\" task");
+	if (ifd::FileDialog::Instance().IsDone(gui::menu::MenuData::save_character_key)) {
+		SPDLOG_DEBUG("Task done");
+		if (ifd::FileDialog::Instance().HasResult()) {
+			SPDLOG_DEBUG("Has Result");
+			const fs::path str = ifd::FileDialog::Instance().GetResult();
+			SPDLOG_DEBUG("path saving: {}", str.string());
+		}
+		ifd::FileDialog::Instance().Close();
+	}
 	if (menu_data.is_edit_mode()) {
 		// TODO
 	} else {
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index a2025ea..68c998c 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -60,7 +60,6 @@ void gui::Gui::render_gui() {
 			ImGui::PushItemWidth(-1);
 			ImGui::InputTextMultiline("Caractère", &data.billy.caractere);
 			ImGui::PopItemWidth();
-			ImGui::TreePop();
 			ImGui::EndChild();
 		}
 		ImGui::SameLine();
@@ -95,7 +94,7 @@ void gui::Gui::render_gui() {
 
 void gui::Gui::render_gpu() const {
 	if (initialized) {
-		glClear(GL_COLOR_BUFFER_BIT);
+		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
 		ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
 	}
 }
diff --git a/src/gui/menu/menu.cpp b/src/gui/menu/menu.cpp
index 6a95416..5032d8d 100644
--- a/src/gui/menu/menu.cpp
+++ b/src/gui/menu/menu.cpp
@@ -12,14 +12,17 @@ gui::menu::Menu::Menu(gui::menu::MenuData &data) noexcept: data(data) {
 	SPDLOG_DEBUG("Creating Menu");
 	ifd::FileDialog::Instance().CreateTexture = [](uint8_t *data, int w, int h, char fmt) -> void * {
 		GLuint tex;
-
+		SPDLOG_DEBUG("Inside CreateTexture for file dialog.");
 		glGenTextures(1, &tex);
+		SPDLOG_DEBUG("texture generated");
 		glBindTexture(GL_TEXTURE_2D, tex);
+		SPDLOG_DEBUG("Texture binded");
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, (fmt == 0) ? GL_BGRA : GL_RGBA, GL_UNSIGNED_BYTE, data);
+		SPDLOG_DEBUG("Before mipmap");
 		glGenerateMipmap(GL_TEXTURE_2D);
 		glBindTexture(GL_TEXTURE_2D, 0);
 
@@ -36,17 +39,23 @@ void gui::menu::Menu::gui() const noexcept {
 	if (ImGui::BeginMenuBar()) {
 		if (ImGui::BeginMenu("File")) {
 			if (ImGui::MenuItem("Open file")) {
-				// TODO
+				SPDLOG_DEBUG("Opening file");
+				ifd::FileDialog::Instance().Open(MenuData::open_character_key, "Open a character sheet", "Character sheet (*.json){.json},.*");
+				SPDLOG_DEBUG("File opened");
 			}
 
 			if (ImGui::MenuItem("Save")) {
+				SPDLOG_DEBUG("Saving file with know path");
 				std::ofstream file{ data.save_path / data.filename };
 				nlohmann::json j;
 				j.emplace("character_sheet", data.character_sheet);
+				file << j;
 			}
 
 			if (ImGui::MenuItem("Save as...")) {
-				// TODO
+				SPDLOG_DEBUG("Saving with file dialog");
+				ifd::FileDialog::Instance().Save(MenuData::save_character_key, "Save character sheet as...", "*.json {.json}");
+				SPDLOG_DEBUG("File saved with dialog");
 			}
 
 			ImGui::EndMenu();
diff --git a/src/main.cpp b/src/main.cpp
index 423e14b..ed0b1bf 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,3 +1,4 @@
+#include <boost/stacktrace.hpp>
 #include <spdlog/spdlog.h>
 #include <spdlog/sinks/stdout_color_sinks.h>
 #include "gui/window.hpp"
@@ -7,7 +8,15 @@
 #include "controller.hpp"
 #include "character_sheet.hpp"
 
+void myTerminateHandler() {
+	try {
+		SPDLOG_CRITICAL(to_string(boost::stacktrace::stacktrace()));
+	} catch (...) {}
+	std::abort();
+}
+
 int main() {
+	std::set_terminate(myTerminateHandler);
 	std::ios::sync_with_stdio(false);
 	spdlog::set_default_logger(spdlog::stdout_color_st("console"));