Fix Flake to Build Successfully (#791)

* Fix Flake to Build Successfully

* Fix typo; Res Folder is now correctly placed

flake.nix

@@ -5,9 +5,73 @@
   outputs = { self, nixpkgs }:
     let
       pkgs = import nixpkgs { system = "x86_64-linux"; };
+      
+      # Dependencies that are not packaged in nixpkgs:
+      aurora-src = pkgs.fetchFromGitHub {
+        owner = "encounter";
+        repo = "aurora";
+        rev = "63606a43265a3bc18dafd500ab4d7a2108f109e6";
+        hash = "sha256-xBvnAwGwNzav67Ac6oUz7RqDUwqgL2bsME3OOMn8Tqw=";
+      };
+      dawn-src = pkgs.fetchzip {
+        url = "https://github.com/encounter/dawn-build/releases/download/v20260423.175430/dawn-linux-x86_64.tar.gz";
+        hash = "sha256-HXfKTLHtMPwupnFnaflCARtXVPuS/0PoCePXidjE5xs=";
+        stripRoot = false;
+      };
+      nod-src = pkgs.fetchzip {
+        url = "https://github.com/encounter/nod/releases/download/v2.0.0-alpha.8/libnod-linux-x86_64.tar.gz";
+        hash = "sha256-mUqvLsbsqaZ+HAjMmHYPYO+MgtanGRTw7Gzn5uXR5rE=";
+        stripRoot = false;
+      };
+      # The version of imgui on nixpkgs does not map cleanly.
+      imgui-src = pkgs.fetchFromGitHub {
+        owner = "ocornut";
+        repo = "imgui";
+        rev = "v1.91.9b-docking";
+        hash = "sha256-mQOJ6jCN+7VopgZ61yzaCnt4R1QLrW7+47xxMhFRHLQ=";
+      };
+      sqlite-src = pkgs.fetchzip {
+        url = "https://sqlite.org/2026/sqlite-amalgamation-3510300.zip";
+        hash = "sha256-pNMR8zxaaqfAzQ0AQBOXMct4usdjey1Q0Gnitg06UhM=";
+      };
+      rmlui-src = pkgs.fetchzip {
+        url = "https://github.com/mikke89/RmlUi/archive/f9b8c9e2935d5df2c7dff2c190d3968e99b0c3dc.tar.gz";
+        hash = "sha256-g4O/JZUrrcseOz8o2QJRt+2CeuiLnVeuDJc906xvuIg=";
+      };
+      # Dusk Actual
       dusk = pkgs.stdenv.mkDerivation {
         name = "dusk";
         src = ./.;
+        postUnpack = ''
+          mkdir -p $sourceRoot/extern/aurora
+          cp -r ${aurora-src}/. $sourceRoot/extern/aurora/
+          chmod -R u+w $sourceRoot/extern/aurora
+          sed -i '/add_subdirectory(tests)/d' $sourceRoot/extern/aurora/CMakeLists.txt
+        '';
+        # Remove last line to re-enable tests
+        cmakeFlags = [
+          "-DFETCHCONTENT_FULLY_DISCONNECTED=ON"
+          "-DFETCHCONTENT_SOURCE_DIR_CXXOPTS=${pkgs.cxxopts.src}"
+          "-DFETCHCONTENT_SOURCE_DIR_JSON=${pkgs.nlohmann_json.src}"
+          "-DFETCHCONTENT_SOURCE_DIR_DAWN_PREBUILT=${dawn-src}"
+          "-DFETCHCONTENT_SOURCE_DIR_XXHASH=${pkgs.xxHash.src}"
+          "-DFETCHCONTENT_SOURCE_DIR_FMT=${pkgs.fmt.src}"
+          "-DFETCHCONTENT_SOURCE_DIR_TRACY=${pkgs.tracy.src}"
+          "-DAURORA_SDL3_PROVIDER=system"
+          "-DFETCHCONTENT_SOURCE_DIR_NOD_PREBUILT=${nod-src}"
+          "-DAURORA_NOD_PROVIDER=package"
+          "-DFETCHCONTENT_SOURCE_DIR_FREETYPE=${pkgs.freetype.src}"
+          "-DFETCHCONTENT_SOURCE_DIR_ZSTD=${pkgs.zstd.src}"
+          "-DFETCHCONTENT_SOURCE_DIR_SQLITE3=${sqlite-src}"
+          "-DFETCHCONTENT_SOURCE_DIR_IMGUI=${imgui-src}"
+          "-DFETCHCONTENT_SOURCE_DIR_RMLUI=${rmlui-src}"
+          "-DCMAKE_CROSSCOMPILING=ON" # Tests are not working as I didn't want to work through getting google's test suite working as well. This is the only guard I could find to disable it.
+        ];
+        installPhase = ''
+          mkdir -p $out/bin
+          cp dusk $out/bin/dusk
+          cp -r ./res $out/bin/res
+        '';
         nativeBuildInputs = [
           pkgs.cmake
           pkgs.pkg-config
@@ -25,6 +89,13 @@
           pkgs.libjpeg8
           pkgs.libxkbcommon
           pkgs.libglvnd
+          pkgs.cxxopts
+          pkgs.abseil-cpp
+          pkgs.sdl3
+          pkgs.fmt
+          pkgs.tracy
+          pkgs.freetype
+          pkgs.zstd
         ];
       };
     in {