initial commit

shared/modules/state.nix

@@ -0,0 +1,33 @@
+{ config, lib, ... }:
+
+with lib;
+
+let
+  sources = import ./../sources/sources.nix;
+in {
+  options.mine.state.enable = mkOption {
+    type = types.bool;
+    default = false;
+  };
+
+  imports = [
+    (sources.impermanence + "/nixos.nix")
+  ];
+
+  config = mkIf config.mine.state.enable {
+    environment.persistence = {
+      root = {
+        persistentStoragePath = "/state/root";
+
+        files = [
+          "/etc/machine-id"
+        ];
+
+        directories = [
+          "/var/lib/nixos"
+          "/var/log"
+        ];
+      };
+    };
+  };
+}