helix: Add nixpkgs-fmt as formatter

flake.nix

@@ -11,8 +11,8 @@
   outputs =
     inputs@{ self, nixpkgs, nixos-unstable, home-manager }:
     let
-      sysLinuxX86 = "x86_64-linux";
-      sysDarwinAarch = "aarch64-darwin";
+      sysLinuxX64 = "x86_64-linux";
+      sysDarwin = "aarch64-darwin";
       sysLinuxAarch = "aarch64-linux";
 
       wrapPkgsSystem = { system }:
@@ -31,32 +31,20 @@
           config.allowUnfree = true;
         };
 
-      pkgsLinuxX64 = wrapPkgsSystem { system = sysLinuxX86; };
-      unstableLinuxX64 = wrapUnstablePkgsSystem { system = sysLinuxX86; };
-      utilsLinuxX64 = import ./lib {
-        inherit nixpkgs nixos-unstable home-manager;
-        pkgs = pkgsLinuxX64;
-        unstable = unstableLinuxX64;
-        system = sysLinuxX86;
-      };
+      wrapUtils = { pkgs, unstable, system }:
+        import ./lib { inherit nixpkgs nixos-unstable home-manager system pkgs unstable; };
+        
+      pkgsLinuxX64 = wrapPkgsSystem { system = sysLinuxX64; };
+      unstableLinuxX64 = wrapUnstablePkgsSystem { system = sysLinuxX64; };
+      utilsLinuxX64 = wrapUtils { system = sysLinuxX64; pkgs = pkgsLinuxX64; unstable = unstableLinuxX64; };
 
       pkgsLinuxAarch = wrapPkgsSystem { system = sysLinuxAarch; };
       unstableLinuxAarch = wrapUnstablePkgsSystem { system = sysLinuxAarch; };
-      utilsLinuxAarch = import ./lib {
-        inherit nixpkgs nixos-unstable home-manager;
-        pkgs = pkgsLinuxAarch;
-        unstable = unstableLinuxAarch;
-        system = sysLinuxAarch;
-      };
+      utilsLinuxAarch = wrapUtils { system = sysLinuxAarch; pkgs = pkgsLinuxAarch; unstable = unstableLinuxAarch; };
 
-      pkgsDarwin = wrapPkgsSystem { system = sysDarwinAarch; };
-      unstableDarwin = wrapUnstablePkgsSystem { system = sysDarwinAarch; };
-      utilsDarwin = import ./lib {
-        inherit nixpkgs nixos-unstable home-manager;
-        pkgs = pkgsDarwin;
-        unstable = unstableDarwin;
-        system = sysDarwinAarch;
-      };
+      pkgsDarwin = wrapPkgsSystem { system = sysDarwin; };
+      unstableDarwin = wrapUnstablePkgsSystem { system = sysDarwin; };
+      utilsDarwin = wrapUtils { system = sysDarwin; pkgs = pkgsDarwin; unstable = unstableDarwin; };
     in
     {
       nixosConfigurations = {

roles/home/helix.nix

@@ -24,6 +24,13 @@
 
       [editor.indent-guides]
       render = true
+
+    '';
+
+    file.".config/helix/languages.toml".text = ''
+      [[language]]
+      name = "nix"
+      formatter = { command = "nixpkgs-fmt" }
     '';
 
     packages = with pkgs.unstable; [
@@ -37,6 +44,7 @@
       nodePackages.typescript
       nodePackages.svelte-language-server
       swiProlog
+      nixpkgs-fmt
     ];
   };
 }