use lix

flake.nix

@@ -103,6 +103,8 @@
           }
           // extraSpecialArgs;
           modules = [
+            (
+              { pkgs, ... }:
               {
                 nixpkgs = {
                   config = pkgConfig;
@@ -113,10 +115,19 @@
                     (final: prev: {
                       openmw-git = openmw;
                     })
+                    (final: prev: {
+                      inherit (prev.lixPackageSets.stable)
+                        nixpkgs-review
+                        nix-eval-jobs
+                        nix-fast-build
+                        colmena
+                        ;
+                    })
                     (import ./packages/overlay.nix)
                   ];
                 };
                 nix = {
+                  package = pkgs.lixPackageSets.stable.lix;
                   settings = {
                     experimental-features = [
                       "nix-command"
@@ -164,6 +175,7 @@
                   ];
                 };
               }
+            )
             ./options.nix
             ./sops.nix
             ./system