proper stable and unstable channels

flake.nix

@@ -13,8 +13,8 @@
    let
     lib = nixpkgs.lib;
     system = "x86_64-linux";
-    pkgs = nixpkgs.legacyPackages.${system};
-    pkgs-stable = nixpkgs-stable.legacyPackages.${system};
+    pkgs = import nixpkgs {inherit system; config.allowUnfree = true; };
+    pkgs-stable = import nixpkgs-stable {inherit system; config.allowUnfree = true; };
     in {
     nixosConfigurations = {
       computer-mo = nixpkgs.lib.nixosSystem {
@@ -36,9 +36,6 @@
       extraSpecialArgs = {
         inherit pkgs-stable;
       };
-    jovianConfigurations = {
-
-    };
     };
   };
  };

system/systempkgs.nix

@@ -11,6 +11,7 @@
     ++
 
    (with pkgs-stable; [
+    mangohud
     wget
     git
     vesktop
@@ -26,6 +27,5 @@
     mangohud
     ibm-plex
     nil
-    citrix_workspace
     ]);
 }