diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..061b1c8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,9 @@
+build/
+temp/
+.vscode/
+
+*.o
+*.elf
+*.z64
+*.n64
+*.v64
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6d8c423..3ad8355 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,8 +1,9 @@
 cmake_minimum_required(VERSION 3.20)
+
 project(N64ModernRuntime)
 
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
 
-add_subdirectory(librecomp)
 add_subdirectory(ultramodern)
+add_subdirectory(librecomp)
diff --git a/README.md b/README.md
index 9d816b0..cab8b4b 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # N64 Modern Runtime
 
-> Note 
+> Note
 This repo is a WIP as files are moved out of Zelda64Recomp and genericized. It cannot be used directly in its current state.
 
 This repo contains two libraries: Ultramodern and Librecomp.
diff --git a/ultramodern/CMakeLists.txt b/ultramodern/CMakeLists.txt
index ded4d93..03290cd 100644
--- a/ultramodern/CMakeLists.txt
+++ b/ultramodern/CMakeLists.txt
@@ -1,18 +1,83 @@
 cmake_minimum_required(VERSION 3.20)
+
 project(ultramodern)
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED True)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+# Warnings
+# TODO: uncoment this when we fix the warnings
+# set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
+
+if(UNIX AND NOT APPLE)
+    set(LINUX TRUE)
+endif()
 
 add_library(ultramodern STATIC
-        "${CMAKE_CURRENT_SOURCE_DIR}/src/audio.cpp"
-        "${CMAKE_CURRENT_SOURCE_DIR}/src/events.cpp"
-        "${CMAKE_CURRENT_SOURCE_DIR}/src/mesgqueue.cpp"
-        "${CMAKE_CURRENT_SOURCE_DIR}/src/misc_ultra.cpp"
-        "${CMAKE_CURRENT_SOURCE_DIR}/src/rt64_layer.cpp"
-        "${CMAKE_CURRENT_SOURCE_DIR}/src/scheduling.cpp"
-        "${CMAKE_CURRENT_SOURCE_DIR}/src/task_win32.cpp"
-        "${CMAKE_CURRENT_SOURCE_DIR}/src/threadqueue.cpp"
-        "${CMAKE_CURRENT_SOURCE_DIR}/src/threads.cpp"
-        "${CMAKE_CURRENT_SOURCE_DIR}/src/timer.cpp")
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/audio.cpp"
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/events.cpp"
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/mesgqueue.cpp"
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/misc_ultra.cpp"
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/rt64_layer.cpp"
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/scheduling.cpp"
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/task_win32.cpp"
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/threadqueue.cpp"
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/threads.cpp"
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/timer.cpp"
+)
 
 target_include_directories(ultramodern PUBLIC
-        "${CMAKE_CURRENT_SOURCE_DIR}/include"
-        "${CMAKE_SOURCE_DIR}/thirdparty/concurrentqueue")
+    "${CMAKE_CURRENT_SOURCE_DIR}/include/"
+    "${CMAKE_CURRENT_SOURCE_DIR}/include/ultramodern" # FIXME: remove redundant path
+    "${CMAKE_SOURCE_DIR}/thirdparty/concurrentqueue"
+)
+
+# TODO: remove when rt64 is no longer a hard dependency
+target_include_directories(ultramodern PRIVATE
+    "${CMAKE_SOURCE_DIR}/rt64/src"
+    "${CMAKE_SOURCE_DIR}/rt64/src/contrib"
+    "${CMAKE_SOURCE_DIR}/rt64/src/contrib/hlslpp/include"
+    "${CMAKE_SOURCE_DIR}/rt64/src/contrib/dxc/inc"
+    "${CMAKE_SOURCE_DIR}/rt64/src/rhi"
+    "${CMAKE_SOURCE_DIR}/rt64/src/render"
+    "${CMAKE_SOURCE_DIR}/rt64/src/contrib/nativefiledialog-extended/src/include"
+)
+
+# TODO: remove when librecomp is untangled from ultramodern
+target_include_directories(ultramodern PRIVATE
+    "${CMAKE_SOURCE_DIR}/librecomp/include"
+)
+
+if (WIN32)
+    include(FetchContent)
+    # Fetch SDL2 on windows
+    FetchContent_Declare(
+        sdl2
+        URL https://github.com/libsdl-org/SDL/releases/download/release-2.28.5/SDL2-devel-2.28.5-VC.zip
+        URL_HASH MD5=d8173db078e54040c666f411c5a6afff
+    )
+    FetchContent_MakeAvailable(sdl2)
+    target_include_directories(ultramodern PRIVATE
+        ${sdl2_SOURCE_DIR}/include
+    )
+    target_link_directories(ultramodern PRIVATE
+        ${sdl2_SOURCE_DIR}/lib/x64
+    )
+endif()
+
+if (LINUX)
+    find_package(SDL2 REQUIRED)
+    find_package(X11 REQUIRED)
+
+    message(STATUS "SDL2_FOUND = ${SDL2_FOUND}")
+    message(STATUS "SDL2_INCLUDE_DIRS = ${SDL2_INCLUDE_DIRS}")
+
+    target_include_directories(ultramodern PRIVATE ${SDL2_INCLUDE_DIRS})
+
+    message(STATUS "X11_FOUND = ${X11_FOUND}")
+    message(STATUS "X11_INCLUDE_DIR = ${X11_INCLUDE_DIR}")
+    message(STATUS "X11_LIBRARIES = ${X11_LIBRARIES}")
+
+    target_include_directories(ultramodern PRIVATE ${X11_INCLUDE_DIR})
+    target_link_libraries(ultramodern PRIVATE ${X11_LIBRARIES})
+endif()
diff --git a/ultramodern/include/ultramodern/recomp_ui.h b/ultramodern/include/ultramodern/recomp_ui.h
new file mode 100644
index 0000000..7b511fc
--- /dev/null
+++ b/ultramodern/include/ultramodern/recomp_ui.h
@@ -0,0 +1,12 @@
+#ifndef __ULTRAMODERN_RECOMP_UI__
+#define __ULTRAMODERN_RECOMP_UI__
+
+namespace recomp {
+    // Currently those functions are expected to be provided by the consumer of this library.
+    // TODO: Change these functions to a callback registering system
+
+    void destroy_ui();
+    void update_supported_options();
+}
+
+#endif
diff --git a/ultramodern/src/events.cpp b/ultramodern/src/events.cpp
index 669a05a..8c41bb4 100644
--- a/ultramodern/src/events.cpp
+++ b/ultramodern/src/events.cpp
@@ -17,7 +17,7 @@
 #include "rt64_layer.h"
 #include "recomp.h"
 #include "recomp_game.h"
-#include "recomp_ui.h"
+#include "ultramodern/recomp_ui.h"
 #include "recomp_input.h"
 #include "rsp.h"
 
@@ -325,7 +325,7 @@ void gfx_thread_func(uint8_t* rdram, moodycamel::LightweightSemaphore* thread_re
 
     // TODO move recomp code out of ultramodern.
     recomp::update_supported_options();
-    
+
     rsp_constants_init();
 
     // Notify the caller thread that this thread is ready.
diff --git a/ultramodern/src/rt64_layer.cpp b/ultramodern/src/rt64_layer.cpp
index 611e1eb..e82a07f 100644
--- a/ultramodern/src/rt64_layer.cpp
+++ b/ultramodern/src/rt64_layer.cpp
@@ -110,6 +110,10 @@ ultramodern::RT64SetupResult map_setup_result(RT64::Application::SetupResult rt6
         case RT64::Application::SetupResult::GraphicsDeviceNotFound:
             return ultramodern::RT64SetupResult::GraphicsDeviceNotFound;
     }
+
+    fprintf(stderr, "Unhandled `RT64::Application::SetupResult` ?\n");
+    assert(false);
+    std::exit(EXIT_FAILURE);
 }
 
 ultramodern::RT64Context::RT64Context(uint8_t* rdram, ultramodern::WindowHandle window_handle, bool debug) {