os/impermanence: init

modules/system/os/impermanence/module.nix

@@ -0,0 +1,30 @@
+{
+  inputs,
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib) optionalString mkIf mkForce;
+
+  cfg = config.modules.system.impermanence;
+in {
+  imports = [
+    inputs.impermanence.nixosModules.impermanence
+  ];
+  environment.persistence."/persist" = {
+    directories = [
+      "/etc/nixos"
+      "/etc/nix"
+      "/etc/NetworkManager/system-connections"
+      "/var/db/sudo"
+      "/var/lib/bluetooth"
+      "/var/lib/nixos"
+      "/var/lib/pipewire"
+      "/var/lib/systemd/coredump"
+    ];
+
+    files = [
+      "/etc/machine-id"
+    ];
+  };
+}