flake.lock

@@ -60,27 +60,6 @@
         "type": "github"
       }
     },
-    "flake-parts": {
-      "inputs": {
-        "nixpkgs-lib": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1677714448,
-        "narHash": "sha256-Hq8qLs8xFu28aDjytfxjdC96bZ6pds21Yy09mSC156I=",
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "rev": "dc531e3a9ce757041e1afaff8ee932725ca60002",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "ref": "main",
-        "repo": "flake-parts",
-        "type": "github"
-      }
-    },
     "futils": {
       "locked": {
         "lastModified": 1678901627,
@@ -206,7 +185,6 @@
     "root": {
       "inputs": {
         "agenix": "agenix",
-        "flake-parts": "flake-parts",
         "futils": "futils",
         "home-manager": "home-manager",
         "nixpkgs": "nixpkgs",

flake.nix

@@ -11,16 +11,6 @@
       };
     };
 
-    flake-parts = {
-      type = "github";
-      owner = "hercules-ci";
-      repo = "flake-parts";
-      ref = "main";
-      inputs = {
-        nixpkgs-lib.follows = "nixpkgs";
-      };
-    };
-
     futils = {
       type = "github";
       owner = "numtide";
@@ -70,7 +60,6 @@
     inputs @
     { self
     , agenix
-    , flake-parts
     , futils
     , home-manager
     , nixpkgs

flake/apps.nix

@@ -1,9 +0,0 @@
-{ inputs, ... }:
-{
-  perSystem = { self', ... }: {
-    apps = {
-      diff-flake = inputs.futils.lib.mkApp { drv = self'.packages.diff-flake; };
-      default = self'.apps.diff-flake;
-    };
-  };
-}

flake/checks.nix

@@ -1,24 +1,16 @@
-{ self, inputs, ... }:
+{ self, pre-commit-hooks, ... }:
+system:
 {
-  imports = [
-    inputs.pre-commit-hooks.flakeModule
-  ];
+  pre-commit = pre-commit-hooks.lib.${system}.run {
+    src = self;
 
-  perSystem = { system, ... }: {
-    pre-commit = {
-      # Add itself to `nix flake check`
-      check.enable = true;
+    hooks = {
+      nixpkgs-fmt = {
+        enable = true;
+      };
 
-      settings = {
-        hooks = {
-          nixpkgs-fmt = {
-            enable = true;
-          };
-
-          shellcheck = {
-            enable = true;
-          };
-        };
+      shellcheck = {
+        enable = true;
       };
     };
   };

flake/default.nix

@@ -1,5 +1,4 @@
 { self
-, flake-parts
 , futils
 , home-manager
 , nixpkgs
@@ -9,7 +8,7 @@
 let
   inherit (self) lib;
 
-  inherit (futils.lib) system;
+  inherit (futils.lib) eachSystem system;
 
   mySystems = [
     system.aarch64-darwin
@@ -17,18 +16,65 @@ let
     system.x86_64-darwin
     system.x86_64-linux
   ];
-in
-flake-parts.lib.mkFlake { inherit inputs; } {
-  systems = mySystems;
 
-  imports = [
-    ./apps.nix
-    ./checks.nix
-    ./dev-shells.nix
-    ./home-manager.nix
-    ./lib.nix
-    ./nixos.nix
-    ./overlays.nix
-    ./packages.nix
-  ];
-}
+  eachMySystem = eachSystem mySystems;
+
+  systemDependant = system: {
+    apps = {
+      diff-flake = futils.lib.mkApp { drv = self.packages.${system}.diff-flake; };
+      default = self.apps.${system}.diff-flake;
+    };
+
+    checks = import ./checks.nix inputs system;
+
+    devShells = import ./dev-shells.nix inputs system;
+
+    packages = import ./packages.nix inputs system;
+
+    # Work-around for https://github.com/nix-community/home-manager/issues/3075
+    legacyPackages = {
+      homeConfigurations = {
+        ambroisie = home-manager.lib.homeManagerConfiguration {
+          # Work-around for home-manager
+          # * not letting me set `lib` as an extraSpecialArgs
+          # * not respecting `nixpkgs.overlays` [1]
+          # [1]: https://github.com/nix-community/home-manager/issues/2954
+          pkgs = import nixpkgs {
+            inherit system;
+
+            overlays = (lib.attrValues self.overlays) ++ [
+              nur.overlay
+            ];
+          };
+
+          modules = [
+            "${self}/home"
+            {
+              # The basics
+              home.username = "ambroisie";
+              home.homeDirectory = "/home/ambroisie";
+              # Let Home Manager install and manage itself.
+              programs.home-manager.enable = true;
+              # This is a generic linux install
+              targets.genericLinux.enable = true;
+            }
+          ];
+
+          extraSpecialArgs = {
+            # Inject inputs to use them in global registry
+            inherit inputs;
+          };
+        };
+      };
+    };
+  };
+
+  systemIndependant = {
+    lib = import ./lib.nix inputs;
+
+    overlays = import ./overlays.nix inputs;
+
+    nixosConfigurations = import ./nixos.nix inputs;
+  };
+in
+(eachMySystem systemDependant) // systemIndependant

flake/dev-shells.nix

@@ -1,19 +1,17 @@
-{ inputs, ... }:
+{ self, nixpkgs, ... }:
+system:
+let
+  pkgs = nixpkgs.legacyPackages.${system};
+in
 {
-  perSystem = { self', config, pkgs, ... }: {
-    devShells = {
-      default = pkgs.mkShell {
-        name = "NixOS-config";
+  default = pkgs.mkShell {
+    name = "NixOS-config";
 
-        nativeBuildInputs = with pkgs; [
-          gitAndTools.pre-commit
-          nixpkgs-fmt
-        ];
+    nativeBuildInputs = with pkgs; [
+      gitAndTools.pre-commit
+      nixpkgs-fmt
+    ];
 
-        shellHook = ''
-          ${config.pre-commit.installationScript}
-        '';
-      };
-    };
+    inherit (self.checks.${system}.pre-commit) shellHook;
   };
 }

flake/home-manager.nix

@@ -1,61 +0,0 @@
-{ self, inputs, lib, ... }:
-let
-  defaultModules = [
-    # Include generic settings
-    "${self}/home"
-    {
-      # Basic user information defaults
-      home.username = lib.mkDefault "ambroisie";
-      home.homeDirectory = lib.mkDefault "/home/ambroisie";
-
-      # Make it a Linux installation by default
-      targets.genericLinux.enable = lib.mkDefault true;
-
-      # Enable home-manager
-      programs.home-manager.enable = true;
-    }
-  ];
-
-  mkHome = name: system: inputs.home-manager.lib.homeManagerConfiguration {
-    # Work-around for home-manager
-    # * not letting me set `lib` as an extraSpecialArgs
-    # * not respecting `nixpkgs.overlays` [1]
-    # [1]: https://github.com/nix-community/home-manager/issues/2954
-    pkgs = import inputs.nixpkgs {
-      inherit system;
-
-      overlays = (lib.attrValues self.overlays) ++ [
-        inputs.nur.overlay
-      ];
-    };
-
-    modules = defaultModules ++ [
-      "${self}/hosts/homes/${name}"
-    ];
-
-    extraSpecialArgs = {
-      # Inject inputs to use them in global registry
-      inherit inputs;
-    };
-  };
-
-  hosts = {
-    "ambroisie@ambroisie" = "x86_64-linux"; # Unfortunate naming here...
-  };
-in
-{
-  perSystem = { system, ... }: {
-    # Work-around for https://github.com/nix-community/home-manager/issues/3075
-    legacyPackages = {
-      homeConfigurations =
-        let
-          filteredHosts = lib.filterAttrs (_: v: v == system) hosts;
-          allHosts = filteredHosts // {
-            # Default configuration
-            ambroisie = system;
-          };
-        in
-        lib.mapAttrs mkHome allHosts;
-    };
-  };
-}

flake/lib.nix

@@ -1,11 +1,7 @@
-{ self, inputs, ... }:
+{ self, nixpkgs, ... } @ inputs:
 let
-  inherit (inputs) nixpkgs;
-
   lib = nixpkgs.lib.extend (final: _: {
     my = import "${self}/lib" { inherit inputs; pkgs = nixpkgs; lib = final; };
   });
 in
-{
-  flake.lib = lib;
-}
+lib

flake/nixos.nix

@@ -1,4 +1,4 @@
-{ self, inputs, ... }:
+{ self, nixpkgs, nur, ... } @ inputs:
 let
   inherit (self) lib;
 
@@ -9,7 +9,7 @@ let
     })
     {
       nixpkgs.overlays = (lib.attrValues self.overlays) ++ [
-        inputs.nur.overlay
+        nur.overlay
       ];
     }
     # Include generic settings
@@ -21,7 +21,7 @@ let
   buildHost = name: system: lib.nixosSystem {
     inherit system;
     modules = defaultModules ++ [
-      "${self}/hosts/nixos/${name}"
+      "${self}/machines/${name}"
     ];
     specialArgs = {
       # Use my extended lib in NixOS configuration
@@ -31,9 +31,7 @@ let
     };
   };
 in
-{
-  flake.nixosConfigurations = lib.mapAttrs buildHost {
-    aramis = "x86_64-linux";
-    porthos = "x86_64-linux";
-  };
+lib.mapAttrs buildHost {
+  aramis = "x86_64-linux";
+  porthos = "x86_64-linux";
 }

flake/overlays.nix

@@ -1,4 +1,5 @@
 { self, ... }:
+
 let
   default-overlays = import "${self}/overlays";
 
@@ -12,6 +13,4 @@ let
     };
   };
 in
-{
-  flake.overlays = default-overlays // additional-overlays;
-}
+default-overlays // additional-overlays

flake/packages.nix

@@ -1,13 +1,10 @@
-{ self, inputs, ... }:
-{
-  perSystem = { pkgs, system, ... }: {
-    packages =
-      let
-        inherit (inputs.futils.lib) filterPackages flattenTree;
-        packages = import "${self}/pkgs" { inherit pkgs; };
-        flattenedPackages = flattenTree packages;
-        finalPackages = filterPackages system flattenedPackages;
-      in
-      finalPackages;
-  };
-}
+{ self, futils, nixpkgs, ... }:
+system:
+let
+  inherit (futils.lib) filterPackages flattenTree;
+  pkgs = nixpkgs.legacyPackages.${system};
+  packages = import "${self}/pkgs" { inherit pkgs; };
+  flattenedPackages = flattenTree packages;
+  finalPackages = filterPackages system flattenedPackages;
+in
+finalPackages

hosts/homes/ambroisie/default.nix

@@ -1,5 +0,0 @@
-# Default home-manager configuration
-{ ... }:
-{
-  # Default configuration, nothing to do
-}

hosts/homes/ambroisie@ambroisie/default.nix

@@ -1,16 +0,0 @@
-# Google Cloudtop configuration
-{ ... }:
-{
-  # Google specific configuration
-  home.homeDirectory = "/usr/local/google/home/ambroisie";
-
-  home.sessionVariables = {
-    # Some tooling (e.g: SSH) need to use this library
-    LD_PRELOAD = "/lib/x86_64-linux-gnu/libnss_cache.so.2\${LD_PRELOAD:+:}$LD_PRELOAD";
-  };
-
-  my.home = {
-    # I don't need a GPG agent
-    gpg.enable = false;
-  };
-}