Add disko as a flake input

flake.lock

@@ -143,6 +143,26 @@
         "type": "github"
       }
     },
+    "disko": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1753140376,
+        "narHash": "sha256-7lrVrE0jSvZHrxEzvnfHFE/Wkk9DDqb+mYCodI5uuB8=",
+        "owner": "nix-community",
+        "repo": "disko",
+        "rev": "545aba02960caa78a31bd9a8709a0ad4b6320a5c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "disko",
+        "type": "github"
+      }
+    },
     "docker-compose-1": {
       "locked": {
         "lastModified": 1624397714,
@@ -856,6 +876,7 @@
         "agenix": "agenix",
         "agenix-rekey": "agenix-rekey",
         "darwin": "darwin_2",
+        "disko": "disko",
         "docker-compose-1": "docker-compose-1",
         "grub2-themes": "grub2-themes",
         "home-manager": "home-manager_2",

flake.nix

@@ -29,6 +29,10 @@
       systems.hosts = with inputs; {
         cobalt.modules = [
           grub2-themes.nixosModules.default
+          disko.nixosModules.default
+        ];
+        mercury.modules = [
+          disko.nixosModules.default
         ];
       };
 
@@ -71,6 +75,10 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
+    # Disk management via Nix
+    disko.url = "github:nix-community/disko";
+    disko.inputs.nixpkgs.follows = "nixpkgs";
+
     agenix.url = "github:ryantm/agenix";
     agenix.inputs.nixpkgs.follows = "nixpkgs";
     agenix-rekey.url = "github:oddlama/agenix-rekey";

systems/x86_64-linux/cobalt/default.nix

@@ -11,10 +11,6 @@
 with lib._elements; {
   imports = [
     ./hardware.nix
-    "${builtins.fetchTarball {
-      url = "https://github.com/nix-community/disko/archive/master.tar.gz";
-      sha256 = "0mzm7digdksivdhikxvrx6l0j2b9lj167ndcimsy9i24k4b91wsk";
-    }}/module.nix"
     ./disk-config.nix
     ./beszel-agent.nix
 

systems/x86_64-linux/mercury/default.nix

@@ -10,10 +10,6 @@
 with lib._elements; {
   imports = [
     ./hardware.nix
-    "${builtins.fetchTarball {
-      url = "https://github.com/nix-community/disko/archive/master.tar.gz";
-      sha256 = "0acvrmfhk86glp59dphbrp9xwcxd8r3zpn18760nzs4930nhhsi3";
-    }}/module.nix"
     ./disk-config.nix
   ];