diff --git a/.github/workflows/cd-pypi.yml b/.github/workflows/cd-pypi.yml
index 77e1bfc59..761b685d5 100644
--- a/.github/workflows/cd-pypi.yml
+++ b/.github/workflows/cd-pypi.yml
@@ -16,6 +16,8 @@ jobs:
         uses: actions/checkout@v4
       - name: "[INIT] Install uv"
         uses: astral-sh/setup-uv@v5
+        with:
+          python-version: "3.10"
       - name: "[EXEC] Build project"
         run: uv build
       - name: "[EXEC] Publish package"
diff --git a/.github/workflows/ci-lint-test.yml b/.github/workflows/ci-lint-test.yml
index aae836103..063cfb808 100644
--- a/.github/workflows/ci-lint-test.yml
+++ b/.github/workflows/ci-lint-test.yml
@@ -8,15 +8,13 @@ jobs:
     defaults:
       run:
         shell: bash
-    strategy:
-      matrix:
-        python: ["3.10"]
     steps:
       - name: "[INIT] Checkout repository"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: "[INIT] Install uv"
         uses: astral-sh/setup-uv@v5
         with:
+          python-version: "3.10"
           enable-cache: true
       - name: "[INIT] Install dependencies"
         run: uv sync --locked --all-extras --dev
@@ -37,10 +35,11 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
       - name: "[INIT] Checkout repository"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: "[INIT] Install uv"
         uses: astral-sh/setup-uv@v5
         with:
+          python-version: ${{ matrix.python }}
           enable-cache: true
       - name: "[INIT] Install dependencies"
         run: uv sync --locked --all-extras --dev --group test
diff --git a/flake.lock b/flake.lock
index 6ec37f548..98a4eced2 100644
--- a/flake.lock
+++ b/flake.lock
@@ -41,7 +41,9 @@
       "inputs": {
         "flake-compat": "flake-compat",
         "gitignore": "gitignore",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": [
+          "nixpkgs"
+        ]
       },
       "locked": {
         "lastModified": 1741379162,
@@ -59,27 +61,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1730768919,
-        "narHash": "sha256-8AKquNnnSaJRXZxc5YmF/WfmxiHX6MMZZasRP6RRQkE=",
+        "lastModified": 1749494155,
+        "narHash": "sha256-FG4DEYBpROupu758beabUk9lhrblSf5hnv84v1TLqMc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a04d33c0c3f1a59a2c1cb0c6e34cd24500e5a1dc",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1748889542,
-        "narHash": "sha256-Hb4iMhIbjX45GcrgOp3b8xnyli+ysRPqAgZ/LZgyT5k=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "10d7f8d34e5eb9c0f9a0485186c1ca691d2c5922",
+        "rev": "88331c17ba434359491e8d5889cce872464052c2",
         "type": "github"
       },
       "original": {
@@ -112,42 +98,8 @@
     "root": {
       "inputs": {
         "hooks": "hooks",
-        "nixpkgs": "nixpkgs_2",
-        "pyproject": "pyproject",
-        "utils": "utils"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    },
-    "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": "nixpkgs",
+        "pyproject": "pyproject"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index 5e32e8567..4536c0402 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,9 +1,11 @@
 # TODO: use uv2nix
 {
   inputs = {
-    utils.url = "github:numtide/flake-utils";
-    hooks.url = "github:cachix/git-hooks.nix";
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+    hooks = {
+      url = "github:cachix/git-hooks.nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
     pyproject = {
       url = "github:pyproject-nix/pyproject.nix";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -13,53 +15,71 @@
   outputs = {
     self,
     hooks,
-    utils,
     nixpkgs,
     pyproject,
     ...
-  }:
-    utils.lib.eachDefaultSystem (system: let
-      pkgs = import nixpkgs {inherit system;};
+  }: let
+    forAllSystems = function:
+      nixpkgs.lib.genAttrs [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ] (system: function system nixpkgs.legacyPackages.${system});
+    project = pyproject.lib.project.loadPyproject {projectRoot = ./.;};
+  in {
+    devShells = forAllSystems (system: pkgs: let
       python = pkgs.python312;
-      project = pyproject.lib.project.loadPyproject {projectRoot = ./.;};
+      arg = project.renderers.withPackages {inherit python;};
+      pyenv = python.withPackages arg;
+      check = self.checks.${system}.pre-commit-check;
     in {
-      devShells.default = let
-        arg = project.renderers.withPackages {inherit python;};
-        pyenv = python.withPackages arg;
-        check = self.checks.${system}.pre-commit-check;
-      in
-        pkgs.mkShell {
-          inherit (check) shellHook;
+      default = pkgs.mkShell {
+        inherit (check) shellHook;
 
-          packages = check.enabledPackages ++ [
+        packages =
+          check.enabledPackages
+          ++ [
             pyenv
             pkgs.uv
             pkgs.pyright
+            pkgs.hyperfine
           ];
-        };
+      };
+    });
 
-      packages.default = let
-        attrs = project.renderers.buildPythonPackage {inherit python;};
-      in
-        python.pkgs.buildPythonPackage attrs;
+    packages = forAllSystems (system: pkgs: let
+      python = pkgs.python312;
+      attrs = project.renderers.buildPythonPackage {inherit python;};
+    in {
+      default = python.pkgs.buildPythonPackage attrs;
+    });
 
-      apps.default = {
+    apps = forAllSystems (system: _: {
+      default = {
         type = "app";
         program = "${self.packages.${system}.default}/bin/proselint";
       };
+    });
 
-      checks = {
-        pre-commit-check = hooks.lib.${system}.run {
-          src = ./.;
-          hooks = {
-            trim-trailing-whitespace.enable = true;
-            end-of-file-fixer.enable = true;
-            mixed-line-endings.enable = true;
-            markdownlint.enable = true;
-            ruff.enable = true;
-            pyright.enable = true;
+    checks = forAllSystems (system: _: {
+      pre-commit-check = hooks.lib.${system}.run {
+        src = ./.;
+        hooks = {
+          trim-trailing-whitespace.enable = true;
+          end-of-file-fixer.enable = true;
+          mixed-line-endings.enable = true;
+          markdownlint.enable = true;
+          ruff.enable = true;
+          pyright.enable = true;
+          convco.enable = true;
+          alejandra.enable = true;
+          statix = {
+            enable = true;
+            settings.ignore = ["/.direnv"];
           };
         };
       };
     });
+  };
 }