From 897f516feca20d3f5669b97f88ff653bd1dc6e55 Mon Sep 17 00:00:00 2001
From: Benedikt Peetz <benedikt.peetz@b-peetz.de>
Date: Wed, 4 Nov 2026 21:19:21 +0100
Subject: inputs.nix: Add depuplication rules for nearly all possible ways to
 fetch nixpkgs

---
 inputs.nix | 150 ++++++++++++++++++++++++++++---------------------------------
 1 file changed, 69 insertions(+), 81 deletions(-)

diff --git a/inputs.nix b/inputs.nix
index 132e4df2..f19865c6 100644
--- a/inputs.nix
+++ b/inputs.nix
@@ -3,6 +3,25 @@ let
 
   lanzabooteVersion = "v1.2.0";
 
+  nixpkgs_override = from_version: to_version: [
+    {
+      when = w_nixpkgs "nixos-${from_version}";
+      set = w_tarball to_version;
+    }
+    {
+      when = w_nixpkgs "nixos-${from_version}-small";
+      set = w_tarball to_version;
+    }
+    {
+      when = w_nixpkgs "nixpkgs-${from_version}";
+      set = w_tarball to_version;
+    }
+    {
+      when = w_nixpkgs "nixpkgs-${from_version}-small";
+      set = w_tarball to_version;
+    }
+  ];
+
   w_nixpkgs = ref: {
     type = "github";
     owner = "nixos";
@@ -21,92 +40,61 @@ let
   nixos_stable = "https://channels.nixos.org/nixos-${nixosVersion}-small/nixexprs.tar.zst";
   nixos_unstable = "https://channels.nixos.org/nixos-unstable-small/nixexprs.tar.zst";
 in {
-  _unflake.dedupRules = [
-    {
-      when = w_nixpkgs "nixos-unstable";
-      set = w_tarball nixos_unstable;
-    }
-    {
-      when = w_nixpkgs "nixpkgs-unstable";
-      set = w_tarball nixos_unstable;
-    }
-    {
-      when = w_nixpkgs "nixos-unstable-small";
-      set = w_tarball nixos_unstable;
-    }
-    {
-      when = w_nixpkgs "nixos-25.05";
-      set = w_tarball nixos_stable;
-    }
-    {
-      when = w_nixpkgs "nixos-25.05-small";
-      set = w_tarball nixos_stable;
-    }
-    {
-      when = w_nixpkgs "nixos-25.11";
-      set = w_tarball nixos_stable;
-    }
-    {
-      when = w_nixpkgs "nixos-25.11-small";
-      set = w_tarball nixos_stable;
-    }
-    {
-      when = w_nixpkgs "nixos-26.05";
-      set = w_tarball nixos_stable;
-    }
-    {
-      when = w_nixpkgs "nixos-26.05-small";
-      set = w_tarball nixos_stable;
-    }
-    {
-      when = {url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.zst";};
-      set = w_tarball nixos_unstable;
-    }
+  _unflake.dedupRules =
+    (nixpkgs_override "25.05" nixos_stable)
+    ++ (nixpkgs_override "25.11" nixos_stable)
+    ++ (nixpkgs_override "26.05" nixos_stable)
+    ++ (nixpkgs_override "unstable" nixos_unstable)
+    ++ [
+      {
+        when = {url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.zst";};
+        set = w_tarball nixos_unstable;
+      }
 
-    # {
-    #   when = {url = "https://git.foss-syndicate.org/vhack.eu/nix-library";};
-    #   set = {url = "file:///home/nixos/s/nix-library";};
-    # }
+      # {
+      #   when = {url = "https://git.foss-syndicate.org/vhack.eu/nix-library";};
+      #   set = {url = "file:///home/nixos/s/nix-library";};
+      # }
 
-    {
-      when = w_github "nix-community" "home-manager";
-      set = {ref = "master";};
-    }
+      {
+        when = w_github "nix-community" "home-manager";
+        set = {ref = "master";};
+      }
 
-    {
-      when = w_github "edolstra" "flake-compat";
-      set = {
-        type = "git";
-        url = "https://git.lix.systems/lix-project/flake-compat";
-        ref = "main";
-      };
-    }
-    {
-      when = w_github "nixos" "flake-compat";
-      set = {
-        type = "git";
-        url = "https://git.lix.systems/lix-project/flake-compat";
-        ref = "main";
-      };
-    }
+      {
+        when = w_github "edolstra" "flake-compat";
+        set = {
+          type = "git";
+          url = "https://git.lix.systems/lix-project/flake-compat";
+          ref = "main";
+        };
+      }
+      {
+        when = w_github "nixos" "flake-compat";
+        set = {
+          type = "git";
+          url = "https://git.lix.systems/lix-project/flake-compat";
+          ref = "main";
+        };
+      }
 
-    {
-      when = w_github "nix-systems" "default";
-      set = {ref = "main";};
-    }
-    {
-      when = w_github "nix-systems" "x86_64-linux";
-      set = {
-        repo = "default";
-        ref = "main";
-      };
-    }
+      {
+        when = w_github "nix-systems" "default";
+        set = {ref = "main";};
+      }
+      {
+        when = w_github "nix-systems" "x86_64-linux";
+        set = {
+          repo = "default";
+          ref = "main";
+        };
+      }
 
-    {
-      when = w_github "numtide" "treefmt-nix";
-      set = {ref = "main";};
-    }
-  ];
+      {
+        when = w_github "numtide" "treefmt-nix";
+        set = {ref = "main";};
+      }
+    ];
 
   # Actual inputs
   agenix.url = "github:ryantm/agenix/main";
-- 
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