Refactoring of the machines

lib/luj.nix

@@ -0,0 +1,43 @@
+lib: with lib; let
+  modules = [
+    {
+      options.machines = mkOption {
+        description = "My machines";
+        type = with types; attrsOf (submodule ({ name, ... }: {
+          freeformType = attrs;
+          options = {
+            hostname = mkOption {
+              description = "The machine's hostname";
+              type = str;
+              default = name;
+              readOnly = true;
+            };
+          };
+        }));
+        default = {};
+      };
+
+      config = {
+        _module.freeformType = with types; attrs;
+
+        domain = "julienmalka.me";
+
+        machines = {
+          lisa = {
+            arch = "x86_64-linux";
+          };
+          newton = {
+            arch = "x86_64-linux";
+          };
+          macintosh = {
+            arch = "x86_64-linux";
+          };
+          lambda = {
+            arch = "aarch64-linux";
+          };
+        };
+      };
+    }
+  ];
+in (evalModules { inherit modules; }).config
+