init

flake.lock

@@ -0,0 +1,26 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1764611609,
+        "narHash": "sha256-yU9BNcP0oadUKupw0UKmO9BKDOVIg9NStdJosEbXf8U=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "8c29968b3a942f2903f90797f9623737c215737c",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixpkgs-unstable",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,13 @@
+{
+  inputs = {
+    nixpkgs.url = "nixpkgs/nixpkgs-unstable";
+  };
+  outputs = {nixpkgs, ...}: let
+    system = "x86_64-linux";
+    pkgs = nixpkgs.legacyPackages.${system};
+  in {
+    packages.${system} = {
+      default = pkgs.callPackage ./package.nix {};
+    };
+  };
+}

package.nix

@@ -0,0 +1,65 @@
+{
+  haskellPackages,
+  lib,
+  stdenv,
+  ...
+}: let
+  ghcExeOptions = lib.concatStringsSep " " ghcFlags;
+  ghcFlags = [
+    "-O"
+    "-Wall"
+    "-Widentities"
+    "-Wincomplete-record-updates"
+    "-Wincomplete-uni-patterns"
+    # "-Wmissing-export-lists"
+    "-Wmissing-home-modules"
+    "-Wpartial-fields"
+    "-Wredundant-constraints"
+    "-threaded"
+    "-rtsopts"
+    "-with-rtsopts=-N"
+    # src
+    "-i./src"
+    "-main-is Game"
+  ];
+  haddockOptions = lib.concatStringsSep " " haddockFlags;
+  haddockFlags = [
+    "--html"
+    "--odir docs"
+    "--optghc=-i./src"
+    "src/Game/Main.hs"
+  ];
+  ghcPackages = p: [
+    p.GLFW-b
+    p.linear
+    p.OpenGL
+  ];
+in
+  stdenv.mkDerivation {
+    pname = "haskengl";
+    version = "0.1.0";
+    src = ./.;
+    nativeBuildInputs = [
+      (haskellPackages.ghcWithPackages ghcPackages)
+    ];
+    buildInputs = [
+    ];
+    configurePhase = ''
+    '';
+    buildPhase = ''
+      ghc ${ghcExeOptions} ./src/Game/Main.hs -o ./Main
+      haddock ${haddockOptions}
+    '';
+    installPhase = ''
+      mkdir -p $out/bin
+      cp ./Main $out/bin/hs-game
+      cp ./docs $out/docs -r
+    '';
+
+    meta = {
+      homepage = "https://mtgmonkey.net";
+      license = lib.licenses.wtfpl;
+      mainProgram = "hs-game";
+      platforms = ["x86_64-linux"];
+    };
+  }

src/Game/Main.hs

@@ -0,0 +1,6 @@
+module Game (main) where
+
+main :: IO ()
+main = do
+  putStrLn "Hallo Welt"
+  return ()