From d228743c5f2eda48dc68367e9a92713984cf147c Mon Sep 17 00:00:00 2001
From: Tim Van Baak <tim.vanbaak@gmail.com>
Date: Wed, 3 Jan 2024 18:15:22 -0800
Subject: [PATCH] Pin registry nixpkgs to flake input

---
 flake.nix | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/flake.nix b/flake.nix
index 6f57aae..c1a71c7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -30,14 +30,19 @@
     nixos-wsl,
     intake,
     intake-sources,
-  }: {
+  }@inputs: {
     nixosModules.beatific = import ./modules/beatific.nix;
 
-    nixosConfigurations = {
+    nixosConfigurations = let
+      pinNixpkgs = nixpkgs: { ... }: {
+        nix.registry.nixpkgs.to = { type = "path"; path = nixpkgs; };
+      };
+    in {
       backyard = nixpkgs-2311.lib.nixosSystem {
         system = "x86_64-linux";
         modules = [
           self.nixosModules.beatific
+          (pinNixpkgs nixpkgs-2311)
           ./machine/backyard
         ];
       };
@@ -45,6 +50,7 @@
         system = "aarch64-linux";
         modules = [
           self.nixosModules.beatific
+          (pinNixpkgs nixpkgs-2305)
           ./machine/catacomb
         ];
       };
@@ -54,6 +60,7 @@
           self.nixosModules.beatific
           intake.nixosModules.default
           intake-sources.nixosModules.default
+          (pinNixpkgs nixpkgs-2305)
           ./machine/empyrean
         ];
       };
@@ -61,6 +68,7 @@
         system = "x86_64-linux";
         modules = [
           self.nixosModules.beatific
+          (pinNixpkgs nixpkgs-2311)
           ({ ... }: {
             environment.systemPackages = [ nixpkgs-2311.legacyPackages."i686-linux".gperftools ];
           })
@@ -78,6 +86,7 @@
         system = "x86_64-linux";
         modules = [
           self.nixosModules.beatific
+          (pinNixpkgs nixpkgs-2305)
           ./machine/unfolder
         ];
       };