Substitute out nix core settings

.config/nix/flake.lock

@@ -3,7 +3,7 @@
     "darwin": {
       "inputs": {
         "nixpkgs": [
-          "nixpkgs"
+          "nixpkgs-darwin"
         ]
       },
       "locked": {
@@ -23,7 +23,7 @@
     "home-manager": {
       "inputs": {
         "nixpkgs": [
-          "nixpkgs"
+          "nixpkgs-darwin"
         ]
       },
       "locked": {
@@ -43,16 +43,30 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1698931758,
-        "narHash": "sha256-pwl9xS9JFMXXR1lUP/QOqO9hiZKukEcVUU1A0DKQwi4=",
+        "lastModified": 1700977043,
+        "narHash": "sha256-tX4d36Bq75NBjnYGaCO9b403VDpdFa99NtdUPQ4EALk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "abbe047fb8a5a7074b6de24cced0dbdb27ea0ea8",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs-darwin": {
+      "locked": {
+        "lastModified": 1701088922,
+        "narHash": "sha256-TZo37reWHGhII5hYtvBPsovQtd+I5XivUENhqQjNw3c=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "b644d97bda6dae837d577e28383c10aa51e5e2d2",
+        "rev": "fa1c8834c9fe613fe3f84d6c524bb1779e50cd6e",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixpkgs-unstable",
+        "ref": "nixpkgs-23.11-darwin",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -61,7 +75,8 @@
       "inputs": {
         "darwin": "darwin",
         "home-manager": "home-manager",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-darwin": "nixpkgs-darwin"
       }
     }
   },

.config/nix/flake.nix

@@ -1,12 +1,24 @@
 {
-  nixConfig.experimental-features = [ "nix-command" "flakes" ];
+  nixConfig = {
+    substituters = [
+      "https://mirrors.ustc.edu.cn/nix-channels/store"
+      "https://cache.nixos.org"
+    ];
+  };
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
-    home-manager.url = "github:nix-community/home-manager/master";
-    home-manager.inputs.nixpkgs.follows = "nixpkgs";
-    darwin.url = "github:lnl7/nix-darwin";
-    darwin.inputs.nixpkgs.follows = "nixpkgs";
+    # nixpkgs-darwin.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs-darwin.url = "github:nixos/nixpkgs/nixpkgs-23.11-darwin";
+
+    darwin = {
+      url = "github:lnl7/nix-darwin";
+      inputs.nixpkgs.follows = "nixpkgs-darwin";
+    };
+
+    home-manager = {
+      url = "github:nix-community/home-manager/master";
+      inputs.nixpkgs.follows = "nixpkgs-darwin";
+    };
   };
 
   outputs = inputs@{ nixpkgs, home-manager, darwin, ... }: {
@@ -19,12 +31,14 @@
       };
 
       modules = [
+        ./modules/nix-core.nix
         ./modules/darwin
         home-manager.darwinModules.home-manager
         {
           home-manager = {
             useGlobalPkgs = true;
             useUserPackages = true;
+            extraSpecialArgs = inputs;
             users.tobi.imports = [ ./modules/home-manager ];
           };
         }

.config/nix/modules/darwin/default.nix

@@ -1,5 +1,4 @@
 ({ pkgs, ... }: {
-  services.nix-daemon.enable = true;
 
   programs.zsh.enable = true;
 
@@ -21,9 +20,6 @@
       ];
     })
   ];
-  nix.extraOptions = ''
-    experimental-features = nix-command flakes
-  '';
 
   system.defaults = {
     dock.autohide = true;

.config/nix/modules/nix-core.nix

@@ -0,0 +1,6 @@
+{ pkgs, ... }:
+{
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  services.nix-daemon.enable = true;
+  programs.nix-index.enable = true;
+}