From 7d42965a0a1841af59810edf9089c7d09b421120 Mon Sep 17 00:00:00 2001
From: Stefan Kempinger <kempinger@ins.jku.at>
Date: Wed, 23 Jul 2025 15:42:00 +0200
Subject: [PATCH] Add system.configurationRevision to configuration.nix and
 tidy flake.nix

---
 configuration.nix | 2 ++
 flake.nix         | 1 +
 2 files changed, 3 insertions(+)

diff --git a/configuration.nix b/configuration.nix
index 2fb1753..5cd98b7 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -112,6 +112,8 @@
   #
   # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
 
+
+  system.configurationRevision = lib.mkIf (specialArgs.inputs.self ? rev) specialArgs.inputs.self.rev;
   system.stateVersion = "25.05"; # Did you read the comment?
 }
 
diff --git a/flake.nix b/flake.nix
index 38ad326..363795c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -17,6 +17,7 @@
           # pass flake inputs to individual module files
           specialArgs = { inherit inputs; };
         } // args));
+       
     in {
 
       packages."${system}".default =