Merge pull request #657 from NixOS/no-overlays

get rid of nix/hydra overlays

Author: Mic92

build/flake-module.nix

@@ -12,19 +12,6 @@ let
     ];
 
     nixpkgs.overlays = [
-      inputs.nix.overlays.default
-      inputs.hydra.overlays.default
-      (
-        final: prev:
-        inputs.nixos-channel-scripts.overlays.default (
-          final
-          // {
-            # Doesn't yet work with Nix 2.28
-            # https://github.com/NixOS/nixos-channel-scripts/issues/79
-            nix = final.nixVersions.nix_2_24;
-          }
-        ) prev
-      )
       inputs.rfc39.overlays.default
     ];
   };
@@ -43,6 +30,7 @@ in
     nixosConfigurations.haumea = lib.nixosSystem {
       system = "x86_64-linux";
 
+      specialArgs = { inherit inputs; };
       modules = [
         flakesModule
         ./haumea
@@ -52,6 +40,7 @@ in
     nixosConfigurations.pluto = lib.nixosSystem {
       system = "x86_64-linux";
 
+      specialArgs = { inherit inputs; };
       modules = [
         flakesModule
         ./pluto
@@ -61,6 +50,7 @@ in
     nixosConfigurations.mimas = lib.nixosSystem {
       system = "x86_64-linux";
 
+      specialArgs = { inherit inputs; };
       modules = [
         flakesModule
         ./mimas

flake.lock

@@ -2,6 +2,7 @@
   config,
   lib,
   pkgs,
+  inputs,
   ...
 }:
 
@@ -16,7 +17,7 @@ let
       description = "Update Channel ${channelName}";
       path = with pkgs; [
         git
-        nixos-channel-scripts
+        inputs.nixos-channel-scripts.packages.${pkgs.hostPlatform.system}.default
       ];
       script = ''
         # Hardcoded in channel scripts.