Reduce duplication with mkPkgs helper and use config.home.homeDirectory

- Add mkPkgs helper function to create pkgs/pkgs-unstable pairs
- Replace hardcoded /home/${username} path with config.home.homeDirectory
- This makes code.nix work correctly on both Linux and macOS

Author: jeremystucki

components/code.nix

@@ -1,7 +1,7 @@
 {
+  config,
   pkgs,
   pkgs-unstable,
-  hostConfiguration,
   ...
 }: {
   home.packages = [pkgs.nil];
@@ -26,7 +26,7 @@
   };
 
   programs.vscode.profiles.default.userSettings = {
-    vscode-neovim.neovimExecutablePaths.linux = "/home/${hostConfiguration.username}/.nix-profile/bin/nvim";
+    vscode-neovim.neovimExecutablePaths.linux = "${config.home.homeDirectory}/.nix-profile/bin/nvim";
     window.autoDetectColorScheme = true;
     editor.cursorSurroundingLines = 8;
 

flake.nix

@@ -46,16 +46,17 @@
       input-fonts.acceptLicense = true;
     };
     username = "jeremy";
+
+    # Helper to create pkgs and pkgs-unstable for a given system
+    mkPkgs = system: {
+      pkgs = import inputs.nixpkgs {inherit system config;};
+      pkgs-unstable = import inputs.nixpkgs-unstable {inherit system config;};
+    };
   in
     {
       nixosConfigurations = let
         system = "x86_64-linux";
-        pkgs = import inputs.nixpkgs {
-          inherit system config;
-        };
-        pkgs-unstable = import inputs.nixpkgs-unstable {
-          inherit system config;
-        };
+        inherit (mkPkgs system) pkgs pkgs-unstable;
         nixosConfig = {
           nixosModule,
           hostSpecificHomeManagerModule ? {},
@@ -100,8 +101,7 @@
 
       darwinConfigurations = let
         system = "aarch64-darwin";
-        pkgs = import inputs.nixpkgs {inherit system config;};
-        pkgs-unstable = import inputs.nixpkgs-unstable {inherit system config;};
+        inherit (mkPkgs system) pkgs pkgs-unstable;
         hostConfiguration = {
           inherit username;
         };
@@ -124,8 +124,7 @@
 
       homeConfigurations."stefis-macbook" = let
         system = "aarch64-darwin";
-        pkgs = import inputs.nixpkgs {inherit system config;};
-        pkgs-unstable = import inputs.nixpkgs-unstable {inherit system config;};
+        inherit (mkPkgs system) pkgs pkgs-unstable;
         hostConfiguration = {
           inherit username;
         };