Desktop transition to NixOS 25.05

development.nix

@@ -1,17 +1,11 @@
-{ pkgs, ... }:
+{ pkgs, lib, ... }:
 let
   nixvim = import (
     builtins.fetchGit {
       url = "https://github.com/nix-community/nixvim";
-      ref = "nixos-24.11";
+      ref = "nixos-25.05";
     }
   );
-  unstable_pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-unstable") {
-    config = {
-      allowUnfree = true;
-    };
-    overlays = [ ];
-  };
 in
 {
   #################### Git configuration ####################
@@ -38,25 +32,20 @@ in
   };
 
   #################### Packages ####################
-  environment.systemPackages =
-    (with pkgs; [
-      nixfmt-rfc-style
-      nixd
+  environment.systemPackages = with pkgs; [
+    nixfmt-rfc-style
+    nixd
 
-      vagrant
-      nmap
-    ])
-    ++ (with unstable_pkgs; [
-      metasploit
-      armitage
-    ]);
+    vagrant
+    nmap
+    metasploit
+    armitage
+  ];
   virtualisation.virtualbox.host.enable = true;
   virtualisation.virtualbox.host.addNetworkInterface = false;
   users.extraGroups.vboxusers.members = [ "vili" ];
 
-  fonts.packages = with pkgs; [
-    nerdfonts
-  ];
+  fonts.packages = builtins.filter lib.attrsets.isDerivation (builtins.attrValues pkgs.nerd-fonts);
 
   #################### Neovim configuration ####################
   imports = [ nixvim.nixosModules.nixvim ];
@@ -64,7 +53,7 @@ in
   programs.nixvim = {
     enable = true;
     defaultEditor = true;
-    vimAlias = true;
+    vimAlias = false;
     colorschemes.vscode.enable = true;
 
     globals.mapleader = " ";