move packages and reformat

flake.nix

@@ -6,7 +6,9 @@
     nixos-wsl.url = "github:nix-community/NixOS-WSL/main";
   };
   outputs = { self, nixpkgs, nixos-wsl, nix, ... }@inputs:
-  let system = if builtins ? currentSystem
+    let
+      system =
+        if builtins ? currentSystem
         then builtins.currentSystem
         else "x86_64-linux";
       pkgs = import nixpkgs { inherit system; };
@@ -24,10 +26,10 @@
               wsl.enable = true;
               nix.settings.experimental-features = [ "nix-command" "flakes" ];
               environment.systemPackages = [
-              pkgs.wget
-              pkgs.git
-              pkgs.curl
-            ]++installedPackages.mkBasePackages.packages;
+
+              ]
+              ++ installedPackages.mkBasePackages.packages
+              ++ installedPackages.mkHaxeDevelopmentPackages.packages;
               programs.nix-ld = {
                 enable = true;
                 package = pkgs.nix-ld-rs;

installed-packages/default.nix

@@ -3,6 +3,14 @@
   mkBasePackages = {
     packages = [
       pkgs.vim
+      pkgs.wget
+      pkgs.git
+      pkgs.curl
+      pkgs.nixpkgs-fmt
+    ];
+  };
+  mkHaxeDevelopmentPackages = {
+    packages = [
       pkgs.haxe
     ];
   };