Simplify nix build

Author: amesgen

.github/workflows/build.yml

@@ -13,10 +13,6 @@ jobs:
         include:
           - os: ubuntu-latest
             targetOs: Linux
-          - os: ubuntu-latest
-            targetOs: Windows
-          - os: macos-latest
-            targetOs: macOS
     name: Build binary for ${{ matrix.targetOs }}
     runs-on: ${{ matrix.os }}
     steps:
@@ -46,8 +42,6 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-          - windows-latest
-          - macos-latest
     name: Test built binaries
     runs-on: ${{ matrix.os }}
     needs: build

.github/workflows/ci.yml

@@ -21,9 +21,6 @@ jobs:
           name: hellsmack
           authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
 
-      - name: Ugly hack
-        # see https://github.com/input-output-hk/haskell.nix/issues/1097
-        run: sed -i 's/ "x86_64-darwin"//g' flake.nix
       - name: Build and test
         run: nix flake check --option sandbox false
       - name: Run docspec

flake.nix

@@ -11,7 +11,7 @@
     flake-utils.url = "github:numtide/flake-utils";
   };
   outputs = { self, nixpkgs, flake-utils, haskellNix, nur, pre-commit-hooks }:
-    flake-utils.lib.eachSystem [ "x86_64-linux" "x86_64-darwin" ] (system:
+    flake-utils.lib.eachSystem [ "x86_64-linux" ] (system:
       let
         pkgs = import nixpkgs {
           inherit system;
@@ -78,23 +78,7 @@
           inherit (self.checks.${system}.pre-commit-check) shellHook;
         };
 
-        packages =
-          lib.optionalAttrs pkgs.stdenv.isLinux
-            {
-              binaries-Linux = hsPkgs.projectCross.musl64.hsPkgs.hellsmack.components.exes.hellsmack;
-              binaries-Windows = hsPkgs.projectCross.mingwW64.hsPkgs.hellsmack.components.exes.hellsmack;
-            }
-          // lib.optionalAttrs pkgs.stdenv.isDarwin {
-            binaries-macOS = pkgs.runCommand "hellsmack-macOS"
-              { buildInputs = [ pkgs.macdylibbundler ]; } ''
-              mkdir -p $out/bin
-              cp ${hellsmack.components.exes.hellsmack}/bin/hellsmack $out/bin/hellsmack
-              dylibbundler -b \
-                -x $out/bin/hellsmack \
-                -d $out/bin \
-                -p '@executable_path'
-            '';
-          };
+        packages.binaries-Linux = hsPkgs.projectCross.musl64.hsPkgs.hellsmack.components.exes.hellsmack;
       });
   nixConfig = {
     extra-substituters = [