drop flake-utils dependency

flake.lock

···
 {
   "nodes": {
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1731533236,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1752950548,
···
     },
     "root": {
       "inputs": {
-        "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs",
         "pyproject-nix": "pyproject-nix"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
       }
     }
   },

flake.nix

···
   inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
   inputs.pyproject-nix.url = "github:nix-community/pyproject.nix";
   inputs.pyproject-nix.inputs.nixpkgs.follows = "nixpkgs";
-  inputs.flake-utils.url = "github:numtide/flake-utils";
 
   outputs =
     {
       self,
       nixpkgs,
       pyproject-nix,
-      flake-utils,
     }:
-    flake-utils.lib.eachDefaultSystem (
-      system:
-      let
-        pkgs = nixpkgs.legacyPackages.${system};
-        pyproject = pyproject-nix.lib.project.loadPyproject { projectRoot = ./.; };
-        python = pkgs.python3;
-        pyprojectPackage =
-          args:
-          python.pkgs.buildPythonApplication (
-            args // pyproject.renderers.buildPythonPackage { inherit python; }
-          );
-        pyprojectEnv =
-          extraPackages:
-          python.withPackages (pyproject.renderers.withPackages { inherit python extraPackages; });
-      in
-      {
-        packages.qbpm = pyprojectPackage {
-          nativeBuildInputs = [
-            pkgs.scdoc
-            pkgs.installShellFiles
-          ];
-          nativeCheckInputs = [ python.pkgs.pytestCheckHook ];
-          postInstallCheck = "$out/bin/qbpm --help";
-          postInstall = ''
-            _QBPM_COMPLETE=bash_source $out/bin/qbpm > completions/qbpm.bash
-            _QBPM_COMPLETE=zsh_source $out/bin/qbpm > completions/qbpm.zsh
-            installShellCompletion completions/qbpm.{bash,zsh,fish}
-            scdoc < qbpm.1.scd > qbpm.1
-            installManPage qbpm.1
-          '';
+    let
+      pyproject = pyproject-nix.lib.project.loadPyproject { projectRoot = ./.; };
+      forAllSystems =
+        mkOutputs:
+        nixpkgs.lib.genAttrs [
+          "aarch64-linux"
+          "aarch64-darwin"
+          "x86_64-darwin"
+          "x86_64-linux"
+        ] (system: mkOutputs nixpkgs.legacyPackages.${system});
+    in
+    {
+      packages = forAllSystems (pkgs: {
+        qbpm = pkgs.python3.pkgs.buildPythonApplication (
+          pyproject.renderers.buildPythonPackage { python = pkgs.python3; }
+          // {
+            nativeBuildInputs = [
+              pkgs.scdoc
+              pkgs.installShellFiles
+            ];
+            nativeCheckInputs = [ pkgs.python3.pkgs.pytestCheckHook ];
+            postInstallCheck = "$out/bin/qbpm --help";
+            postInstall = ''
+              _QBPM_COMPLETE=bash_source $out/bin/qbpm > completions/qbpm.bash
+              _QBPM_COMPLETE=zsh_source $out/bin/qbpm > completions/qbpm.zsh
+              installShellCompletion completions/qbpm.{bash,zsh,fish}
+              scdoc < qbpm.1.scd > qbpm.1
+              installManPage qbpm.1
+            '';
 
-          meta = {
-            homepage = "https://github.com/pvsr/qbpm";
-            changelog = "https://github.com/pvsr/qbpm/blob/main/CHANGELOG.md";
-            description = "A profile manager for qutebrowser";
-            license = pkgs.lib.licenses.gpl3Plus;
-          };
+            meta = {
+              homepage = "https://github.com/pvsr/qbpm";
+              changelog = "https://github.com/pvsr/qbpm/blob/main/CHANGELOG.md";
+              description = "A profile manager for qutebrowser";
+              license = pkgs.lib.licenses.gpl3Plus;
+            };
+          }
+        );
+        default = self.packages.${pkgs.system}.qbpm;
+      });
+
+      apps = forAllSystems (pkgs: {
+        qbpm = {
+          type = "app";
+          program = pkgs.lib.getExe self.packages.${pkgs.system}.qbpm;
         };
-        packages.default = self.packages.${system}.qbpm;
-        apps.qbpm = flake-utils.lib.mkApp { drv = self.packages.${system}.qbpm; };
-        apps.default = self.apps.${system}.qbpm;
+        default = self.apps.${pkgs.system}.qbpm;
+      });
 
-        devShells.default = pkgs.mkShell {
+      devShells = forAllSystems (pkgs: {
+        default = pkgs.mkShell {
           packages = [
             pkgs.ruff
-            (pyprojectEnv (
-              ps: with ps; [
-                flit
-                pytest
-                mypy
-                pylsp-mypy
-              ]
+            (pkgs.python3.withPackages (
+              pyproject.renderers.withPackages {
+                python = pkgs.python3;
+                extraPackages = ps: [
+                  ps.flit
+                  ps.pytest
+                  ps.mypy
+                  ps.pylsp-mypy
+                ];
+              }
             ))
           ];
         };
+      });
 
-        formatter = pkgs.nixfmt-tree.override {
+      formatter = forAllSystems (
+        pkgs:
+        pkgs.nixfmt-tree.override {
           runtimeInputs = [ pkgs.ruff ];
           settings = {
             tree-root-file = "flake.nix";
···
               includes = [ "*.py" ];
             };
           };
-        };
-      }
-    );
+        }
+      );
+    };
 }