feat: add mailserver

Signed-off-by: Lander Van den Bulcke <landervandenbulcke@gmail.com>

flake.nix

@@ -24,6 +24,14 @@
 
     # neovim
     nixvim.url = "git+https://codeberg.org/landervdb/nixvim.git";
+
+    # mailserver
+    nixos-mailserver = {
+      url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-24.11";
+      inputs = {
+        nixpkgs.follows = "nixpkgs";
+      };
+    };
   };
 
   outputs =
@@ -52,11 +60,11 @@
         };
 
         # servers
-        cloud-1 = nixpkgs.lib.nixosSystem {
+        mail-01 = nixpkgs.lib.nixosSystem {
           system = "aarch64-linux";
           specialArgs = { inherit inputs outputs; };
           modules = [
-            ./hosts/cloud-1
+            ./hosts/mail-01
           ];
         };
       };