feat(nix): use flake parts

default.nix

@@ -0,0 +1,12 @@
+(import (
+  let
+    lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+    nodeName = lock.nodes.root.inputs.flake-compat;
+  in
+  fetchTarball {
+    url =
+      lock.nodes.${nodeName}.locked.url
+        or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.${nodeName}.locked.rev}.tar.gz";
+    sha256 = lock.nodes.${nodeName}.locked.narHash;
+  }
+) { src = ./.; }).defaultNix

flake.lock

@@ -1,43 +1,91 @@
 {
   "nodes": {
-    "flake-utils": {
+    "flake-compat": {
+      "locked": {
+        "lastModified": 1733328505,
+        "narHash": "sha256-NeCCThCEP3eCl2l/+27kNNK7QrwZB1IJCrXfrbv5oqU=",
+        "rev": "ff81ac966bb2cae68946d5ed5fc4994f96d0ffec",
+        "revCount": 69,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/edolstra/flake-compat/1.1.0/01948eb7-9cba-704f-bbf3-3fa956735b52/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz"
+      }
+    },
+    "flake-parts": {
       "inputs": {
-        "systems": "systems"
+        "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1731533236,
+        "lastModified": 1765495779,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "narHash": "sha256-MhA7wmo/7uogLxiewwRRmIax70g6q1U/YemqTGoFHlM=",
-        "owner": "numtide",
+        "owner": "hercules-ci",
-        "repo": "flake-utils",
+        "repo": "flake-parts",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "rev": "5635c32d666a59ec9a55cab87e898889869f7b71",
         "type": "github"
       },
       "original": {
-        "owner": "numtide",
+        "owner": "hercules-ci",
-        "repo": "flake-utils",
+        "repo": "flake-parts",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1755078291,
+        "lastModified": 1765472234,
-        "narHash": "sha256-Hu/gTDoi4uy6TAKISPHQusSMy8U6xUbLSDjKBYdhDIY=",
+        "narHash": "sha256-9VvC20PJPsleGMewwcWYKGzDIyjckEz8uWmT0vCDYK0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3385ca0cd7e14c1a1eb80401fe011705ff012323",
+        "rev": "2fbfb1d73d239d2402a8fe03963e37aab15abe8b",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-25.05",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1761765539,
+        "narHash": "sha256-b0yj6kfvO8ApcSE+QmA6mUfu8IYG6/uU28OFn4PaC8M=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "719359f4562934ae99f5443f20aa06c2ffff91fc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1761236834,
+        "narHash": "sha256-+pthv6hrL5VLW2UqPdISGuLiUZ6SnAXdd2DdUE+fV2Q=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "d5faa84122bc0a1fd5d378492efce4e289f8eac1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "root": {
       "inputs": {
-        "flake-utils": "flake-utils",
+        "flake-compat": "flake-compat",
-        "nixpkgs": "nixpkgs"
+        "flake-parts": "flake-parts",
+        "nixpkgs": "nixpkgs",
+        "systems": "systems",
+        "treefmt-nix": "treefmt-nix"
       }
     },
     "systems": {
@@ -54,6 +102,24 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "treefmt-nix": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1762938485,
+        "narHash": "sha256-AlEObg0syDl+Spi4LsZIBrjw+snSVU4T8MOeuZJUJjM=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "5b4ee75aeefd1e2d5a1cc43cf6ba65eba75e83e4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -2,137 +2,98 @@
   description = "The lazier way to manage everything docker";
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    flake-utils.url = "github:numtide/flake-utils";
+    systems.url = "github:nix-systems/default";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    flake-compat.url = "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz";
+    treefmt-nix.url = "github:numtide/treefmt-nix";
   };
 
   outputs =
-    {
+    inputs@{
       self,
-      nixpkgs,
+      flake-parts,
-      flake-utils,
+      systems,
+      ...
     }:
-    let
+    flake-parts.lib.mkFlake { inherit inputs; } {
-      supportedSystems = [
+      systems = import systems;
-        "x86_64-linux"
+      imports = [
-        "aarch64-linux"
+        inputs.treefmt-nix.flakeModule
-        "x86_64-darwin"
-        "aarch64-darwin"
       ];
 
-      gitCommit = self.rev or self.dirtyRev or "dev";
+      perSystem =
-      version = "0.24.1";
+        {
+          self',
+          pkgs,
+          system,
+          ...
+        }:
+        let
+          lazydocker = pkgs.buildGoModule rec {
+            pname = "lazydocker";
+            version = "dev";
 
-    in
+            gitCommit = inputs.self.rev or inputs.self.dirtyRev or "dev";
-    flake-utils.lib.eachSystem supportedSystems (
-      system:
-      let
-        pkgs = import nixpkgs { inherit system; };
 
-        lazydocker = pkgs.buildGoModule rec {
+            src = ./.;
-          pname = "lazydocker";
+            vendorHash = null;
-          inherit version;
 
-          src = ./.;
+            # Disable integration tests that require specific environment
+            doCheck = false;
 
-          vendorHash = null;
+            ldflags = [
+              "-s"
+              "-w"
+              "-X main.commit=${gitCommit}"
+              "-X main.version=${version}"
+              "-X main.buildSource=nix"
+            ];
 
-          # Disable integration tests that require specific environment
+            meta = {
-          doCheck = false;
+              description = "The lazier way to manage everything docker";
-
+              homepage = "https://github.com/jesseduffield/lazydocker";
-          nativeBuildInputs = with pkgs; [ git ];
+              license = pkgs.lib.licenses.mit;
-
+              maintainers = [ "jesseduffield" ];
-          buildInputs = with pkgs; [ git ];
+              platforms = pkgs.lib.platforms.unix;
-
+              mainProgram = "lazydocker";
-          ldflags = [
+            };
-            "-s"
-            "-w"
-            "-X main.commit=${gitCommit}"
-            "-X main.version=${version}"
-            "-X main.buildSource=nix"
-          ];
-
-          meta = with pkgs.lib; {
-            description = "The lazier way to manage everything docker";
-            homepage = "https://github.com/jesseduffield/lazydocker";
-            license = licenses.mit;
-            maintainers = [ "jesseduffield" ];
-            platforms = platforms.unix;
-            mainProgram = "lazydocker";
           };
-        };
+        in
-
+        {
-      in
+          packages = {
-      {
+            default = lazydocker;
-        packages = {
+            inherit lazydocker;
-          default = lazydocker;
-          inherit lazydocker;
-        };
-
-        apps = {
-          default = flake-utils.lib.mkApp {
-            drv = lazydocker;
-            name = "lazydocker";
           };
-          lazydocker = flake-utils.lib.mkApp {
+
-            drv = lazydocker;
+          devShells.default = pkgs.mkShell {
-            name = "lazydocker";
+            name = "lazydocker-dev";
+
+            buildInputs = with pkgs; [
+              # Go toolchain
+              go
+              gotools
+
+              gnumake
+            ];
+
+            # Environment variables for development
+            CGO_ENABLED = "0";
           };
+
+          treefmt = {
+            programs.nixfmt.enable = pkgs.lib.meta.availableOn pkgs.stdenv.buildPlatform pkgs.nixfmt-rfc-style.compiler;
+            programs.nixfmt.package = pkgs.nixfmt-rfc-style;
+            programs.gofmt.enable = true;
+          };
+
+          checks.build = lazydocker;
         };
 
-        devShells.default = pkgs.mkShell {
+      flake = {
-          name = "lazydocker-dev";
+        overlays.default = final: prev: {
-
+          lazydocker = inputs.self.packages.${final.system}.lazydocker;
-          buildInputs = with pkgs; [
-            # Go toolchain
-            go_1_24
-            gotools
-            golangci-lint
-
-            # Development tools
-            git
-            gnumake
-          ];
-
-          shellHook = ''
-            echo "Lazydocker development environment"
-            echo "Go version: $(go version)"
-            echo "Git version: $(git --version)"
-            echo ""
-          '';
-
-          # Environment variables for development
-          CGO_ENABLED = "0";
         };
-
-        # Formatting check
-        formatter = pkgs.nixpkgs-fmt;
-
-        # Development checks
-        checks = {
-          # Ensure the package builds
-          build = lazydocker;
-
-          # Format check
-          format =
-            pkgs.runCommand "check-format"
-              {
-                buildInputs = [ pkgs.nixpkgs-fmt ];
-              }
-              ''
-                nixpkgs-fmt --check ${./.}
-                touch $out
-              '';
-        };
-      }
-    )
-    // {
-      # Global overlay for other flakes to use
-      overlays.default = final: prev: {
-        lazydocker = self.packages.${final.system}.lazydocker;
       };
-
-      # CI/CD support
-      hydraJobs = self.packages;
     };
 }

shell.nix

@@ -0,0 +1,12 @@
+(import (
+  let
+    lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+    nodeName = lock.nodes.root.inputs.flake-compat;
+  in
+  fetchTarball {
+    url =
+      lock.nodes.${nodeName}.locked.url
+        or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.${nodeName}.locked.rev}.tar.gz";
+    sha256 = lock.nodes.${nodeName}.locked.narHash;
+  }
+) { src = ./.; }).shellNix