refactor: moved modules to legacy-modules

legacy-modules/nixos-modules/ssh.nix

@@ -0,0 +1,44 @@
+{
+  lib,
+  config,
+  ...
+}: {
+  options = {
+    services.openssh.impermanence.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = config.services.openssh.enable && config.storage.impermanence.enable;
+    };
+  };
+
+  config = {
+    services = {
+      openssh = {
+        enable = true;
+        ports = [22];
+        settings = {
+          PasswordAuthentication = false;
+          UseDns = true;
+          X11Forwarding = false;
+        };
+      };
+    };
+
+    storage.datasets.replicate."system/root" = {
+      files = lib.mkIf config.services.openssh.impermanence.enable (builtins.listToAttrs (
+        lib.lists.flatten (
+          builtins.map (hostKey: [
+            {
+              name = hostKey.path;
+              value = {enable = true;};
+            }
+            {
+              name = "${hostKey.path}.pub";
+              value = {enable = true;};
+            }
+          ])
+          config.services.openssh.hostKeys
+        )
+      ));
+    };
+  };
+}