use release tag for global release branch assignment

configuration.nix

@@ -224,13 +224,7 @@
   # Or disable the firewall altogether.
   networking.firewall.enable = true;
 
-  # Copy the NixOS configuration file and link it from the resulting system
-  # (/run/current-system/configuration.nix). This is useful in case you
-  # accidentally delete configuration.nix.
-  # system.copySystemConfiguration = true;
-
   # INITIAL system version
-  # CURRENT nixpkgs version = 25.05
   system.stateVersion = "24.11";
 
 }

flake.nix

@@ -1,14 +1,17 @@
+let
+  release = "25.11";
+in
 {
   description = "System Wide Config Controller";
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-${release}";
     nixvim = {
-      url = "github:nix-community/nixvim";
+      url = "github:nix-community/nixvim/nixos-${release}";
       inputs.nixpkgs.follows = "nixpkgs";
     };
     home-manager = {
-      url = "github:nix-community/home-manager/release-25.11";
+      url = "github:nix-community/home-manager/release-${release}";
       inputs.nixpkgs.follows = "nixpkgs";
     };
     disko = {
@@ -16,7 +19,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     impermanence.url = "github:nix-community/impermanence";
-    # implement at some point (So I can push repo public)
     sops-nix = {
       url = "github:Mic92/sops-nix";
       inputs.nixpkgs.follows = "nixpkgs";