build(nix): Add binary distributions

flake.nix

@@ -26,34 +26,41 @@
 
           overlays = [
             haskellNix.overlay
-            (final: prev: {
-              gibberishProject = final.haskell-nix.cabalProject' {
-                src = ./.;
-                compiler-nix-name = "ghc964";
-                name = "gibberish";
 
-                flake.variants.profiled = {
-                  modules = [{
+            (final: prev:
+              let
+                project = final.haskell-nix.cabalProject' {
+                  src = ./.;
+                  compiler-nix-name = "ghc964";
+                  name = "gibberish";
+
+                  flake.variants.profiled = {
+                    modules = [{
                     enableLibraryProfiling = true;
                     enableProfiling = true;
-                  }];
-                };
-
-                shell = {
-                  tools = {
-                    cabal = "latest";
-                    haskell-language-server = "latest";
-                    hp2pretty = "latest";
+                    }];
                   };
 
-                  nativeBuildInputs = with final; [fourmolu hlint];
-                  withHoogle = true;
+                  shell = {
+                    tools = {
+                      cabal = "latest";
+                      haskell-language-server = "latest";
+                      hp2pretty = "latest";
+                    };
+
+                    nativeBuildInputs = with final; [fourmolu hlint];
+                    withHoogle = true;
 
-                  # No cross platforms should speed up evaluation
-                  crossPlatforms = _: [];
+                    # No cross platforms should speed up evaluation
+                    crossPlatforms = _: [];
+                  };
                 };
-              };
-            })
+              in {
+                gibberishProject = project.appendOverlays [
+                  # Add exes
+                  final.haskell-nix.haskellLib.projectOverlays.projectComponents
+                ];
+              })
 
             (final: prev: {
               fourmolu =
@@ -102,6 +109,67 @@
                 (pkgs.lib.optionals pkgs.stdenv.hostPlatform.isLinux
                   [p.musl64]));
           };
+
+          cpExesCmd = project:
+            let
+              inherit (pkgs) lib;
+              exes = lib.collect lib.isDerivation project.exes;
+            in ''
+              # Create an intermediate dir
+              mkdir release
+
+              # Copy exes to intermediate dir
+              ${lib.concatMapStringsSep
+                  "\n"
+                  (exe: "cp --verbose --remove-destination --update=none ${exe}/bin/* release")
+                  exes}
+            '';
+
+          mkDistMusl =
+            let
+              project = pkgs.gibberishProject.projectCross.musl64;
+              name = "gibberish-${version}-x86_64-linux";
+              version = project.exes.gibber.identifier.version;
+            in
+              pkgs.runCommand
+                "gibberish-musl64"
+                {}
+                ''
+                  mkdir -p $out
+
+                  # Copy exes to intermediate dir
+                  ${cpExesCmd project}
+
+                  # Package distribution
+                  cd release
+                  dist_file=${name}.tar.gz
+                  tar -cvzf $out/$dist_file .
+                '';
+
+          mkDistWin64 =
+            let
+              inherit (pkgs) lib;
+              project = pkgs.gibberishProject.projectCross.mingwW64;
+              name = "gibberish-${version}-x86_64-windows";
+              version = project.exes.gibber.identifier.version;
+              env = {
+                nativeBuildInputs = [pkgs.zip];
+              };
+            in
+              pkgs.runCommand
+                "gibberish-win64"
+                env
+                ''
+                  mkdir -p $out
+
+                  # Copy exes to intermediate dir
+                  ${cpExesCmd project}
+
+                  # Package distribution
+                  cd release
+                  dist_file=${name}.zip
+                  find . -type f | xargs zip $out/$dist_file
+                '';
         in
           with pkgs.lib;
           flake // {
@@ -117,6 +185,9 @@
 
             packages = {
               default = flake.packages."gibberish:exe:gibber";
+            } // pkgs.lib.optionalAttrs (system == "x86_64-linux") {
+              dist-musl = mkDistMusl;
+              dist-win64 = mkDistWin64;
             } // mapAttrs' mkPkg flake.packages;
           });