flake: switch to npins

Signed-off-by: Bloxx12 <charlie@charlieroot.dev>
Change-Id: I6a6a6964f4aa3349951fe7574622564452ad1af1

modules/system/nix/nix.mod.nix

@@ -1,7 +1,7 @@
 # credits to raf
 {
   config,
-  inputs,
+  sources,
   lib,
   pkgs,
   ...
@@ -9,10 +9,6 @@
   inherit (lib.attrsets) mapAttrsToList;
   inherit (lib.modules) mkForce;
 in {
-  imports = [
-    inputs.determinate.nixosModules.default
-  ];
-
   nix = {
     # Check that Nix can parse the generated nix.conf.
     checkConfig = true;
@@ -25,9 +21,9 @@ in {
 
     # this is taken from sioodmy.
     # pin the registry to avoid downloading and evaling a new nixpkgs version every time
-    registry =
-      lib.mapAttrs (_: v: {flake = v;}) inputs
-      // {system.flake = inputs.self;};
+    # registry =
+    #   lib.mapAttrs (_: v: {flake = v.outPath;}) sources
+    #   // {system.flake = sources.nichts;};
 
     # Add inputs to the system's legacy channels
     # to make legacy nix commands consistent as well
@@ -157,7 +153,7 @@ in {
       ];
       # Determinate nix config
       # ===========================================
-      lazy-trees = true;
+      # lazy-trees = true;
       # ===========================================
     };
   };