fix: restrict to pkgs-stable and pkgs-pinned

flake.nix

@@ -25,7 +25,7 @@
     ayugram-desktop.url = "github:/ayugram-port/ayugram-desktop/release?submodules=1";
     ags.url = "github:Aylur/ags/3ed9737bdbc8fc7a7c7ceef2165c9109f336bff6";
 
-    nixpkgs-fixed.url = "github:nixos/nixpkgs/ce01daebf8489ba97bd1609d185ea276efdeb121";
+    nixpkgs-pinned.url = "github:nixos/nixpkgs/2d293cbfa5a793b4c50d17c05ef9e385b90edf6c";
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-25.11";
     sops-nix.url = "github:Mic92/sops-nix";
@@ -49,27 +49,20 @@
     };
   };
   
-  outputs = { self, nixpkgs, nixpkgs-stable, nixpkgs-fixed, home-manager, ... }@inputs:
-
-    let
-      system = "x86_64-linux";
-    in {
-
-    nixosConfigurations = {
-      WhiteRaven = nixpkgs-stable.lib.nixosSystem {
-        specialArgs = {
-          pkgs-unstable = import nixpkgs {
-            inherit system;
-            config.allowUnfree = true;
-          };
-          pkgs-fixed = import nixpkgs-fixed {
-            inherit system;
-            config.allowUnfree = true;
-          };
-          inherit inputs system;
-        };
-        modules = [ ./host/WhiteRaven/configuration.nix ];
+  outputs = { self, nixpkgs, nixpkgs-stable, nixpkgs-pinned, home-manager, ... }@inputs: let
+    system = "x86_64-linux";
+    config = { allowUnfree = true; };
+    mkHost = hostname: nixpkgs.lib.nixosSystem {
+      specialArgs = {
+        inherit inputs;
+        pkgs-stable = import nixpkgs-stable { inherit system config; };
+        pkgs-pinned = import nixpkgs-pinned { inherit system config; };
       };
+      modules = [ ./host/${hostname}/configuration.nix ];
+    };
+  in {
+    nixosConfigurations = {
+      WhiteRaven = mkHost "WhiteRaven";
     };
   };
 }

host/WhiteRaven/configuration.nix

@@ -1,7 +1,7 @@
 # Edit this configuration file to define what should be installed on
 # your system.  Help is available in the configuration.nix(5) man page
 # and in the NixOS manual (accessible by running ‘nixos-help’).
-{ config, pkgs, pkgs-unstable, pkgs-fixed, lib, inputs,  ... }:
+{ config, pkgs, pkgs-stable, pkgs-pinned, lib, inputs,  ... }:
 
 {
   imports = [
@@ -16,8 +16,8 @@
     (import ../../user/common.nix {
       inherit config;
       inherit pkgs;
-      inherit pkgs-unstable;
-      inherit pkgs-fixed;
+      inherit pkgs-stable;
+      inherit pkgs-pinned;
       inherit lib;
       inherit inputs;
       name = "kirill";

modules/host/vpn.nix

@@ -1,11 +1,11 @@
-{ pkgs, pkgs-unstable, config, inputs, ...}: {
+{ pkgs, config, inputs, ...}: {
   systemd.services.v2raya = {
     enable = true;
     description = "v2rayA gui client";
     after = [ "network.target" ];
     serviceConfig = {
       Restart = "always";
-      ExecStart = "${pkgs-unstable.v2raya}/bin/v2rayA";
+      ExecStart = "${pkgs.v2raya}/bin/v2rayA";
     };
     path = with pkgs; [ iptables bash iproute2 ];
     wantedBy = [ "multi-user.target" ];

modules/user/packages/desktop.nix

@@ -1,6 +1,6 @@
-{ pkgs, inputs, pkgs-fixed, ... }: {
+{ pkgs, inputs, pkgs-pinned, ... }: {
   home.packages = with pkgs; [
-    pkgs-fixed.ayugram-desktop
+    pkgs-pinned.ayugram-desktop
     obs-studio
     mpv
     obsidian

user/common.nix

@@ -1,4 +1,4 @@
-{config, pkgs, pkgs-unstable, pkgs-fixed, lib, inputs, name, fullname ? name, ... }: {
+{config, pkgs, pkgs-stable, pkgs-pinned, lib, inputs, name, fullname ? name, ... }: {
   imports = [
     inputs.home-manager.nixosModules.home-manager {
       home-manager = {
@@ -27,8 +27,8 @@
         };
         extraSpecialArgs = {
           inherit inputs;
-          pkgs-stable = pkgs;
-          inherit pkgs-fixed;
+          inherit pkgs-stable;
+          inherit pkgs-pinned;
           host = {
             name = config.networking.hostName;
           };